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Finding the Fourth Proportional to 111,630, 154,050.48 and 61,330.08

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Solution

The fourth proportional to 111,630, 154,050.48 and 61,330.08 is: 84,636.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,630 : 154,050.48 = 61,330.08 : x
  2. Step 2: Convert to fraction form
    111,630/154,050.48 = 61,330.08/x
  3. Step 3: Cross multiply
    111,630x = 154,050.48 × 61,330.08
  4. Step 4: Simplify right side
    111,630x = 9,447,928,262.44
  5. Step 5: Solve for x
    x = 9,447,928,262.44/111,630
  6. Step 6: Final answer
    x = 84,636.10

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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.