Home / 157,560.16-217,434.80-85,939.68

Finding the Fourth Proportional to 157,560.16, 217,434.80 and 85,939.68

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Solution

The fourth proportional to 157,560.16, 217,434.80 and 85,939.68 is: 118,597.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,560.16 : 217,434.80 = 85,939.68 : x
  2. Step 2: Convert to fraction form
    157,560.16/217,434.80 = 85,939.68/x
  3. Step 3: Cross multiply
    157,560.16x = 217,434.80 × 85,939.68
  4. Step 4: Simplify right side
    157,560.16x = 18,686,277,132.86
  5. Step 5: Solve for x
    x = 18,686,277,132.86/157,560.16
  6. Step 6: Final answer
    x = 118,597.73

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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.