Home / 111,712-154,162.58-63,981.16

Finding the Fourth Proportional to 111,712, 154,162.58 and 63,981.16

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Solution

The fourth proportional to 111,712, 154,162.58 and 63,981.16 is: 88,294.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,712 : 154,162.58 = 63,981.16 : x
  2. Step 2: Convert to fraction form
    111,712/154,162.58 = 63,981.16/x
  3. Step 3: Cross multiply
    111,712x = 154,162.58 × 63,981.16
  4. Step 4: Simplify right side
    111,712x = 9,863,500,696.99
  5. Step 5: Solve for x
    x = 9,863,500,696.99/111,712
  6. Step 6: Final answer
    x = 88,294.01

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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.