Home / 113,572,031.90-170,358,047.85-81,323,404.70

Finding the Fourth Proportional to 113,572,031.90, 170,358,047.85 and 81,323,404.70

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Solution

The fourth proportional to 113,572,031.90, 170,358,047.85 and 81,323,404.70 is: 121,985,107.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,572,031.90 : 170,358,047.85 = 81,323,404.70 : x
  2. Step 2: Convert to fraction form
    113,572,031.90/170,358,047.85 = 81,323,404.70/x
  3. Step 3: Cross multiply
    113,572,031.90x = 170,358,047.85 × 81,323,404.70
  4. Step 4: Simplify right side
    113,572,031.90x = 13,854,096,469,207,514
  5. Step 5: Solve for x
    x = 13,854,096,469,207,514/113,572,031.90
  6. Step 6: Final answer
    x = 121,985,107.05

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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.