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Finding the Fourth Proportional to 159,114.48, 219,572.08 and 87,490.24

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Solution

The fourth proportional to 159,114.48, 219,572.08 and 87,490.24 is: 120,733.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,114.48 : 219,572.08 = 87,490.24 : x
  2. Step 2: Convert to fraction form
    159,114.48/219,572.08 = 87,490.24/x
  3. Step 3: Cross multiply
    159,114.48x = 219,572.08 × 87,490.24
  4. Step 4: Simplify right side
    159,114.48x = 19,210,413,976.50
  5. Step 5: Solve for x
    x = 19,210,413,976.50/159,114.48
  6. Step 6: Final answer
    x = 120,733.29

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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.