Home / 103,471.24-142,677.30-69,878.92

Finding the Fourth Proportional to 103,471.24, 142,677.30 and 69,878.92

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Solution

The fourth proportional to 103,471.24, 142,677.30 and 69,878.92 is: 96,356.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,471.24 : 142,677.30 = 69,878.92 : x
  2. Step 2: Convert to fraction form
    103,471.24/142,677.30 = 69,878.92/x
  3. Step 3: Cross multiply
    103,471.24x = 142,677.30 × 69,878.92
  4. Step 4: Simplify right side
    103,471.24x = 9,970,135,632.52
  5. Step 5: Solve for x
    x = 9,970,135,632.52/103,471.24
  6. Step 6: Final answer
    x = 96,356.59

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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.