Home / 158,397.11-218,586.76-85,798.43

Finding the Fourth Proportional to 158,397.11, 218,586.76 and 85,798.43

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Solution

The fourth proportional to 158,397.11, 218,586.76 and 85,798.43 is: 118,401.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,397.11 : 218,586.76 = 85,798.43 : x
  2. Step 2: Convert to fraction form
    158,397.11/218,586.76 = 85,798.43/x
  3. Step 3: Cross multiply
    158,397.11x = 218,586.76 × 85,798.43
  4. Step 4: Simplify right side
    158,397.11x = 18,754,400,826.79
  5. Step 5: Solve for x
    x = 18,754,400,826.79/158,397.11
  6. Step 6: Final answer
    x = 118,401.16

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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.