Home / 158,265.16-218,405.97-86,649.73

Finding the Fourth Proportional to 158,265.16, 218,405.97 and 86,649.73

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Solution

The fourth proportional to 158,265.16, 218,405.97 and 86,649.73 is: 119,576.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,265.16 : 218,405.97 = 86,649.73 : x
  2. Step 2: Convert to fraction form
    158,265.16/218,405.97 = 86,649.73/x
  3. Step 3: Cross multiply
    158,265.16x = 218,405.97 × 86,649.73
  4. Step 4: Simplify right side
    158,265.16x = 18,924,818,330.89
  5. Step 5: Solve for x
    x = 18,924,818,330.89/158,265.16
  6. Step 6: Final answer
    x = 119,576.65

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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.