Home / 111,735,840.78-154,108,106.55-72,590,230.17

Finding the Fourth Proportional to 111,735,840.78, 154,108,106.55 and 72,590,230.17

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Solution

The fourth proportional to 111,735,840.78, 154,108,106.55 and 72,590,230.17 is: 100,117,767.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,735,840.78 : 154,108,106.55 = 72,590,230.17 : x
  2. Step 2: Convert to fraction form
    111,735,840.78/154,108,106.55 = 72,590,230.17/x
  3. Step 3: Cross multiply
    111,735,840.78x = 154,108,106.55 × 72,590,230.17
  4. Step 4: Simplify right side
    111,735,840.78x = 11,186,742,925,527,386
  5. Step 5: Solve for x
    x = 11,186,742,925,527,386/111,735,840.78
  6. Step 6: Final answer
    x = 100,117,767.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.