Home / 157,818.02-217,787.76-86,198.06

Finding the Fourth Proportional to 157,818.02, 217,787.76 and 86,198.06

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Solution

The fourth proportional to 157,818.02, 217,787.76 and 86,198.06 is: 118,952.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,818.02 : 217,787.76 = 86,198.06 : x
  2. Step 2: Convert to fraction form
    157,818.02/217,787.76 = 86,198.06/x
  3. Step 3: Cross multiply
    157,818.02x = 217,787.76 × 86,198.06
  4. Step 4: Simplify right side
    157,818.02x = 18,772,882,403.75
  5. Step 5: Solve for x
    x = 18,772,882,403.75/157,818.02
  6. Step 6: Final answer
    x = 118,952.72

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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.