Home / 142,002.45-195,972.90-81,592.65

Finding the Fourth Proportional to 142,002.45, 195,972.90 and 81,592.65

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Solution

The fourth proportional to 142,002.45, 195,972.90 and 81,592.65 is: 112,603.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,002.45 : 195,972.90 = 81,592.65 : x
  2. Step 2: Convert to fraction form
    142,002.45/195,972.90 = 81,592.65/x
  3. Step 3: Cross multiply
    142,002.45x = 195,972.90 × 81,592.65
  4. Step 4: Simplify right side
    142,002.45x = 15,989,948,239.19
  5. Step 5: Solve for x
    x = 15,989,948,239.19/142,002.45
  6. Step 6: Final answer
    x = 112,603.33

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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.