Home / 157,772.12-217,726.62-86,152.68

Finding the Fourth Proportional to 157,772.12, 217,726.62 and 86,152.68

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Solution

The fourth proportional to 157,772.12, 217,726.62 and 86,152.68 is: 118,891.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,772.12 : 217,726.62 = 86,152.68 : x
  2. Step 2: Convert to fraction form
    157,772.12/217,726.62 = 86,152.68/x
  3. Step 3: Cross multiply
    157,772.12x = 217,726.62 × 86,152.68
  4. Step 4: Simplify right side
    157,772.12x = 18,757,731,820.34
  5. Step 5: Solve for x
    x = 18,757,731,820.34/157,772.12
  6. Step 6: Final answer
    x = 118,891.30

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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.