Home / 157,844.79-217,822.23-86,225.13

Finding the Fourth Proportional to 157,844.79, 217,822.23 and 86,225.13

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Solution

The fourth proportional to 157,844.79, 217,822.23 and 86,225.13 is: 118,988.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,844.79 : 217,822.23 = 86,225.13 : x
  2. Step 2: Convert to fraction form
    157,844.79/217,822.23 = 86,225.13/x
  3. Step 3: Cross multiply
    157,844.79x = 217,822.23 × 86,225.13
  4. Step 4: Simplify right side
    157,844.79x = 18,781,750,098.64
  5. Step 5: Solve for x
    x = 18,781,750,098.64/157,844.79
  6. Step 6: Final answer
    x = 118,988.72

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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.