Home / 157,616.12-217,509.45-85,995.92

Finding the Fourth Proportional to 157,616.12, 217,509.45 and 85,995.92

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Solution

The fourth proportional to 157,616.12, 217,509.45 and 85,995.92 is: 118,673.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,616.12 : 217,509.45 = 85,995.92 : x
  2. Step 2: Convert to fraction form
    157,616.12/217,509.45 = 85,995.92/x
  3. Step 3: Cross multiply
    157,616.12x = 217,509.45 × 85,995.92
  4. Step 4: Simplify right side
    157,616.12x = 18,704,925,261.44
  5. Step 5: Solve for x
    x = 18,704,925,261.44/157,616.12
  6. Step 6: Final answer
    x = 118,673.94

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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.