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Finding the Fourth Proportional to 125,358.96, 172,998.60 and 70,906.68

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Solution

The fourth proportional to 125,358.96, 172,998.60 and 70,906.68 is: 97,853.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,358.96 : 172,998.60 = 70,906.68 : x
  2. Step 2: Convert to fraction form
    125,358.96/172,998.60 = 70,906.68/x
  3. Step 3: Cross multiply
    125,358.96x = 172,998.60 × 70,906.68
  4. Step 4: Simplify right side
    125,358.96x = 12,266,756,370.65
  5. Step 5: Solve for x
    x = 12,266,756,370.65/125,358.96
  6. Step 6: Final answer
    x = 97,853.05

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1.5x scale

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.