Home / 157,646.90-217,557.35-86,031.55

Finding the Fourth Proportional to 157,646.90, 217,557.35 and 86,031.55

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Solution

The fourth proportional to 157,646.90, 217,557.35 and 86,031.55 is: 118,726.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,646.90 : 217,557.35 = 86,031.55 : x
  2. Step 2: Convert to fraction form
    157,646.90/217,557.35 = 86,031.55/x
  3. Step 3: Cross multiply
    157,646.90x = 217,557.35 × 86,031.55
  4. Step 4: Simplify right side
    157,646.90x = 18,716,794,516.45
  5. Step 5: Solve for x
    x = 18,716,794,516.45/157,646.90
  6. Step 6: Final answer
    x = 118,726.05

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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.