Home / 102,747.25-141,779.24-57,425.32

Finding the Fourth Proportional to 102,747.25, 141,779.24 and 57,425.32

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Solution

The fourth proportional to 102,747.25, 141,779.24 and 57,425.32 is: 79,240.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,747.25 : 141,779.24 = 57,425.32 : x
  2. Step 2: Convert to fraction form
    102,747.25/141,779.24 = 57,425.32/x
  3. Step 3: Cross multiply
    102,747.25x = 141,779.24 × 57,425.32
  4. Step 4: Simplify right side
    102,747.25x = 8,141,718,226.36
  5. Step 5: Solve for x
    x = 8,141,718,226.36/102,747.25
  6. Step 6: Final answer
    x = 79,240.25

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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.