Home / 131,657.64-181,694.08-80,673.20

Finding the Fourth Proportional to 131,657.64, 181,694.08 and 80,673.20

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Solution

The fourth proportional to 131,657.64, 181,694.08 and 80,673.20 is: 111,333.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,657.64 : 181,694.08 = 80,673.20 : x
  2. Step 2: Convert to fraction form
    131,657.64/181,694.08 = 80,673.20/x
  3. Step 3: Cross multiply
    131,657.64x = 181,694.08 × 80,673.20
  4. Step 4: Simplify right side
    131,657.64x = 14,657,842,854.66
  5. Step 5: Solve for x
    x = 14,657,842,854.66/131,657.64
  6. Step 6: Final answer
    x = 111,333.02

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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.