Home / 159,141.35-219,610.13-87,514.40

Finding the Fourth Proportional to 159,141.35, 219,610.13 and 87,514.40

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Solution

The fourth proportional to 159,141.35, 219,610.13 and 87,514.40 is: 120,767.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,141.35 : 219,610.13 = 87,514.40 : x
  2. Step 2: Convert to fraction form
    159,141.35/219,610.13 = 87,514.40/x
  3. Step 3: Cross multiply
    159,141.35x = 219,610.13 × 87,514.40
  4. Step 4: Simplify right side
    159,141.35x = 19,219,047,225.25
  5. Step 5: Solve for x
    x = 19,219,047,225.25/159,141.35
  6. Step 6: Final answer
    x = 120,767.15

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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.