Home / 99,459.35-137,256.78-54,140.27

Finding the Fourth Proportional to 99,459.35, 137,256.78 and 54,140.27

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Solution

The fourth proportional to 99,459.35, 137,256.78 and 54,140.27 is: 74,715.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,459.35 : 137,256.78 = 54,140.27 : x
  2. Step 2: Convert to fraction form
    99,459.35/137,256.78 = 54,140.27/x
  3. Step 3: Cross multiply
    99,459.35x = 137,256.78 × 54,140.27
  4. Step 4: Simplify right side
    99,459.35x = 7,431,119,128.53
  5. Step 5: Solve for x
    x = 7,431,119,128.53/99,459.35
  6. Step 6: Final answer
    x = 74,715.14

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1.5x scale

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.