Home / 157,943.01-217,412.10-137,764.74

Finding the Fourth Proportional to 157,943.01, 217,412.10 and 137,764.74

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Solution

The fourth proportional to 157,943.01, 217,412.10 and 137,764.74 is: 189,636.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,943.01 : 217,412.10 = 137,764.74 : x
  2. Step 2: Convert to fraction form
    157,943.01/217,412.10 = 137,764.74/x
  3. Step 3: Cross multiply
    157,943.01x = 217,412.10 × 137,764.74
  4. Step 4: Simplify right side
    157,943.01x = 29,951,721,429.35
  5. Step 5: Solve for x
    x = 29,951,721,429.35/157,943.01
  6. Step 6: Final answer
    x = 189,636.26

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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.