Home / 138,425.60-207,638.40-44,931.35

Finding the Fourth Proportional to 138,425.60, 207,638.40 and 44,931.35

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Solution

The fourth proportional to 138,425.60, 207,638.40 and 44,931.35 is: 67,397.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,425.60 : 207,638.40 = 44,931.35 : x
  2. Step 2: Convert to fraction form
    138,425.60/207,638.40 = 44,931.35/x
  3. Step 3: Cross multiply
    138,425.60x = 207,638.40 × 44,931.35
  4. Step 4: Simplify right side
    138,425.60x = 9,329,473,623.84
  5. Step 5: Solve for x
    x = 9,329,473,623.84/138,425.60
  6. Step 6: Final answer
    x = 67,397.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.