Home / 90,753,091.90-136,129,637.85-87,225,898.30

Finding the Fourth Proportional to 90,753,091.90, 136,129,637.85 and 87,225,898.30

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Solution

The fourth proportional to 90,753,091.90, 136,129,637.85 and 87,225,898.30 is: 130,838,847.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,753,091.90 : 136,129,637.85 = 87,225,898.30 : x
  2. Step 2: Convert to fraction form
    90,753,091.90/136,129,637.85 = 87,225,898.30/x
  3. Step 3: Cross multiply
    90,753,091.90x = 136,129,637.85 × 87,225,898.30
  4. Step 4: Simplify right side
    90,753,091.90x = 11,874,029,946,719,930
  5. Step 5: Solve for x
    x = 11,874,029,946,719,930/90,753,091.90
  6. Step 6: Final answer
    x = 130,838,847.45

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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.