Home / 102,631.48-141,631.02-57,919.16

Finding the Fourth Proportional to 102,631.48, 141,631.02 and 57,919.16

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Solution

The fourth proportional to 102,631.48, 141,631.02 and 57,919.16 is: 79,928.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,631.48 : 141,631.02 = 57,919.16 : x
  2. Step 2: Convert to fraction form
    102,631.48/141,631.02 = 57,919.16/x
  3. Step 3: Cross multiply
    102,631.48x = 141,631.02 × 57,919.16
  4. Step 4: Simplify right side
    102,631.48x = 8,203,149,708.34
  5. Step 5: Solve for x
    x = 8,203,149,708.34/102,631.48
  6. Step 6: Final answer
    x = 79,928.20

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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.