Home / 159,089.31-219,543.27-87,474.15

Finding the Fourth Proportional to 159,089.31, 219,543.27 and 87,474.15

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Solution

The fourth proportional to 159,089.31, 219,543.27 and 87,474.15 is: 120,714.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,089.31 : 219,543.27 = 87,474.15 : x
  2. Step 2: Convert to fraction form
    159,089.31/219,543.27 = 87,474.15/x
  3. Step 3: Cross multiply
    159,089.31x = 219,543.27 × 87,474.15
  4. Step 4: Simplify right side
    159,089.31x = 19,204,360,931.47
  5. Step 5: Solve for x
    x = 19,204,360,931.47/159,089.31
  6. Step 6: Final answer
    x = 120,714.34

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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.