Home / 142,073.00-196,061.15-77,542.83

Finding the Fourth Proportional to 142,073.00, 196,061.15 and 77,542.83

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Solution

The fourth proportional to 142,073.00, 196,061.15 and 77,542.83 is: 107,009.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,073.00 : 196,061.15 = 77,542.83 : x
  2. Step 2: Convert to fraction form
    142,073.00/196,061.15 = 77,542.83/x
  3. Step 3: Cross multiply
    142,073.00x = 196,061.15 × 77,542.83
  4. Step 4: Simplify right side
    142,073.00x = 15,203,136,617.91
  5. Step 5: Solve for x
    x = 15,203,136,617.91/142,073.00
  6. Step 6: Final answer
    x = 107,009.33

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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.