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Finding the Fourth Proportional to 159,123.39, 219,590.29 and 87,501.87

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Solution

The fourth proportional to 159,123.39, 219,590.29 and 87,501.87 is: 120,752.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,123.39 : 219,590.29 = 87,501.87 : x
  2. Step 2: Convert to fraction form
    159,123.39/219,590.29 = 87,501.87/x
  3. Step 3: Cross multiply
    159,123.39x = 219,590.29 × 87,501.87
  4. Step 4: Simplify right side
    159,123.39x = 19,214,561,118.22
  5. Step 5: Solve for x
    x = 19,214,561,118.22/159,123.39
  6. Step 6: Final answer
    x = 120,752.59

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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.