Home / 159,128.48-219,602.94-87,514.04

Finding the Fourth Proportional to 159,128.48, 219,602.94 and 87,514.04

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Solution

The fourth proportional to 159,128.48, 219,602.94 and 87,514.04 is: 120,772.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,128.48 : 219,602.94 = 87,514.04 : x
  2. Step 2: Convert to fraction form
    159,128.48/219,602.94 = 87,514.04/x
  3. Step 3: Cross multiply
    159,128.48x = 219,602.94 × 87,514.04
  4. Step 4: Simplify right side
    159,128.48x = 19,218,340,475.28
  5. Step 5: Solve for x
    x = 19,218,340,475.28/159,128.48
  6. Step 6: Final answer
    x = 120,772.48

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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.