Home / 103,269.74-142,500.67-57,938.29

Finding the Fourth Proportional to 103,269.74, 142,500.67 and 57,938.29

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Solution

The fourth proportional to 103,269.74, 142,500.67 and 57,938.29 is: 79,948.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,269.74 : 142,500.67 = 57,938.29 : x
  2. Step 2: Convert to fraction form
    103,269.74/142,500.67 = 57,938.29/x
  3. Step 3: Cross multiply
    103,269.74x = 142,500.67 × 57,938.29
  4. Step 4: Simplify right side
    103,269.74x = 8,256,244,642.56
  5. Step 5: Solve for x
    x = 8,256,244,642.56/103,269.74
  6. Step 6: Final answer
    x = 79,948.35

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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.