Home / 135,377.40-186,819.30-74,948.52

Finding the Fourth Proportional to 135,377.40, 186,819.30 and 74,948.52

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Solution

The fourth proportional to 135,377.40, 186,819.30 and 74,948.52 is: 103,428.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,377.40 : 186,819.30 = 74,948.52 : x
  2. Step 2: Convert to fraction form
    135,377.40/186,819.30 = 74,948.52/x
  3. Step 3: Cross multiply
    135,377.40x = 186,819.30 × 74,948.52
  4. Step 4: Simplify right side
    135,377.40x = 14,001,830,042.44
  5. Step 5: Solve for x
    x = 14,001,830,042.44/135,377.40
  6. Step 6: Final answer
    x = 103,428.12

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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.