Home / 103,445.80-142,773.78-61,001.80

Finding the Fourth Proportional to 103,445.80, 142,773.78 and 61,001.80

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Solution

The fourth proportional to 103,445.80, 142,773.78 and 61,001.80 is: 84,193.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,445.80 : 142,773.78 = 61,001.80 : x
  2. Step 2: Convert to fraction form
    103,445.80/142,773.78 = 61,001.80/x
  3. Step 3: Cross multiply
    103,445.80x = 142,773.78 × 61,001.80
  4. Step 4: Simplify right side
    103,445.80x = 8,709,457,572.80
  5. Step 5: Solve for x
    x = 8,709,457,572.80/103,445.80
  6. Step 6: Final answer
    x = 84,193.44

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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.