Home / 103,320.42-142,545.51-67,531.10

Finding the Fourth Proportional to 103,320.42, 142,545.51 and 67,531.10

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Solution

The fourth proportional to 103,320.42, 142,545.51 and 67,531.10 is: 93,168.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,320.42 : 142,545.51 = 67,531.10 : x
  2. Step 2: Convert to fraction form
    103,320.42/142,545.51 = 67,531.10/x
  3. Step 3: Cross multiply
    103,320.42x = 142,545.51 × 67,531.10
  4. Step 4: Simplify right side
    103,320.42x = 9,626,254,377.63
  5. Step 5: Solve for x
    x = 9,626,254,377.63/103,320.42
  6. Step 6: Final answer
    x = 93,168.94

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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.