Home / 157,921.64-217,931.96-86,301.66

Finding the Fourth Proportional to 157,921.64, 217,931.96 and 86,301.66

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Solution

The fourth proportional to 157,921.64, 217,931.96 and 86,301.66 is: 119,096.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,921.64 : 217,931.96 = 86,301.66 : x
  2. Step 2: Convert to fraction form
    157,921.64/217,931.96 = 86,301.66/x
  3. Step 3: Cross multiply
    157,921.64x = 217,931.96 × 86,301.66
  4. Step 4: Simplify right side
    157,921.64x = 18,807,890,705.33
  5. Step 5: Solve for x
    x = 18,807,890,705.33/157,921.64
  6. Step 6: Final answer
    x = 119,096.35

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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.