Home / 103,087.36-142,244.32-57,761.92

Finding the Fourth Proportional to 103,087.36, 142,244.32 and 57,761.92

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Solution

The fourth proportional to 103,087.36, 142,244.32 and 57,761.92 is: 79,702.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,087.36 : 142,244.32 = 57,761.92 : x
  2. Step 2: Convert to fraction form
    103,087.36/142,244.32 = 57,761.92/x
  3. Step 3: Cross multiply
    103,087.36x = 142,244.32 × 57,761.92
  4. Step 4: Simplify right side
    103,087.36x = 8,216,305,032.29
  5. Step 5: Solve for x
    x = 8,216,305,032.29/103,087.36
  6. Step 6: Final answer
    x = 79,702.35

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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.