Home / 157,726.70-217,666.14-86,109.74

Finding the Fourth Proportional to 157,726.70, 217,666.14 and 86,109.74

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Solution

The fourth proportional to 157,726.70, 217,666.14 and 86,109.74 is: 118,833.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,726.70 : 217,666.14 = 86,109.74 : x
  2. Step 2: Convert to fraction form
    157,726.70/217,666.14 = 86,109.74/x
  3. Step 3: Cross multiply
    157,726.70x = 217,666.14 × 86,109.74
  4. Step 4: Simplify right side
    157,726.70x = 18,743,174,722.20
  5. Step 5: Solve for x
    x = 18,743,174,722.20/157,726.70
  6. Step 6: Final answer
    x = 118,833.24

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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.