Home / 103,291.53-142,545.15-57,972.33

Finding the Fourth Proportional to 103,291.53, 142,545.15 and 57,972.33

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Solution

The fourth proportional to 103,291.53, 142,545.15 and 57,972.33 is: 80,003.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,291.53 : 142,545.15 = 57,972.33 : x
  2. Step 2: Convert to fraction form
    103,291.53/142,545.15 = 57,972.33/x
  3. Step 3: Cross multiply
    103,291.53x = 142,545.15 × 57,972.33
  4. Step 4: Simplify right side
    103,291.53x = 8,263,674,475.70
  5. Step 5: Solve for x
    x = 8,263,674,475.70/103,291.53
  6. Step 6: Final answer
    x = 80,003.41

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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.