Home / 131,798.10-181,882.25-71,368.75

Finding the Fourth Proportional to 131,798.10, 181,882.25 and 71,368.75

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Solution

The fourth proportional to 131,798.10, 181,882.25 and 71,368.75 is: 98,489.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,798.10 : 181,882.25 = 71,368.75 : x
  2. Step 2: Convert to fraction form
    131,798.10/181,882.25 = 71,368.75/x
  3. Step 3: Cross multiply
    131,798.10x = 181,882.25 × 71,368.75
  4. Step 4: Simplify right side
    131,798.10x = 12,980,708,536.42
  5. Step 5: Solve for x
    x = 12,980,708,536.42/131,798.10
  6. Step 6: Final answer
    x = 98,489.34

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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.