Home / 103,306.83-142,552.47-57,989.80

Finding the Fourth Proportional to 103,306.83, 142,552.47 and 57,989.80

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Solution

The fourth proportional to 103,306.83, 142,552.47 and 57,989.80 is: 80,019.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,306.83 : 142,552.47 = 57,989.80 : x
  2. Step 2: Convert to fraction form
    103,306.83/142,552.47 = 57,989.80/x
  3. Step 3: Cross multiply
    103,306.83x = 142,552.47 × 57,989.80
  4. Step 4: Simplify right side
    103,306.83x = 8,266,588,868.42
  5. Step 5: Solve for x
    x = 8,266,588,868.42/103,306.83
  6. Step 6: Final answer
    x = 80,019.77

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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.