Home / 159,131.68-219,602.28-87,516.16

Finding the Fourth Proportional to 159,131.68, 219,602.28 and 87,516.16

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Solution

The fourth proportional to 159,131.68, 219,602.28 and 87,516.16 is: 120,772.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,131.68 : 219,602.28 = 87,516.16 : x
  2. Step 2: Convert to fraction form
    159,131.68/219,602.28 = 87,516.16/x
  3. Step 3: Cross multiply
    159,131.68x = 219,602.28 × 87,516.16
  4. Step 4: Simplify right side
    159,131.68x = 19,218,748,272.84
  5. Step 5: Solve for x
    x = 19,218,748,272.84/159,131.68
  6. Step 6: Final answer
    x = 120,772.61

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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.