Home / 103,058.91-142,150.32-72,496.85

Finding the Fourth Proportional to 103,058.91, 142,150.32 and 72,496.85

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Solution

The fourth proportional to 103,058.91, 142,150.32 and 72,496.85 is: 99,995.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,058.91 : 142,150.32 = 72,496.85 : x
  2. Step 2: Convert to fraction form
    103,058.91/142,150.32 = 72,496.85/x
  3. Step 3: Cross multiply
    103,058.91x = 142,150.32 × 72,496.85
  4. Step 4: Simplify right side
    103,058.91x = 10,305,449,715.74
  5. Step 5: Solve for x
    x = 10,305,449,715.74/103,058.91
  6. Step 6: Final answer
    x = 99,995.72

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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.