Home / 158,397.29-218,588.45-85,800.34

Finding the Fourth Proportional to 158,397.29, 218,588.45 and 85,800.34

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Solution

The fourth proportional to 158,397.29, 218,588.45 and 85,800.34 is: 118,404.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,397.29 : 218,588.45 = 85,800.34 : x
  2. Step 2: Convert to fraction form
    158,397.29/218,588.45 = 85,800.34/x
  3. Step 3: Cross multiply
    158,397.29x = 218,588.45 × 85,800.34
  4. Step 4: Simplify right side
    158,397.29x = 18,754,961,808.13
  5. Step 5: Solve for x
    x = 18,754,961,808.13/158,397.29
  6. Step 6: Final answer
    x = 118,404.56

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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.