Home / 103,385.57-142,670.34-57,444.26

Finding the Fourth Proportional to 103,385.57, 142,670.34 and 57,444.26

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Solution

The fourth proportional to 103,385.57, 142,670.34 and 57,444.26 is: 79,272.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,385.57 : 142,670.34 = 57,444.26 : x
  2. Step 2: Convert to fraction form
    103,385.57/142,670.34 = 57,444.26/x
  3. Step 3: Cross multiply
    103,385.57x = 142,670.34 × 57,444.26
  4. Step 4: Simplify right side
    103,385.57x = 8,195,591,391.90
  5. Step 5: Solve for x
    x = 8,195,591,391.90/103,385.57
  6. Step 6: Final answer
    x = 79,272.11

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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.