Home / 131,851.12-181,955.42-71,421.77

Finding the Fourth Proportional to 131,851.12, 181,955.42 and 71,421.77

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Solution

The fourth proportional to 131,851.12, 181,955.42 and 71,421.77 is: 98,562.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,851.12 : 181,955.42 = 71,421.77 : x
  2. Step 2: Convert to fraction form
    131,851.12/181,955.42 = 71,421.77/x
  3. Step 3: Cross multiply
    131,851.12x = 181,955.42 × 71,421.77
  4. Step 4: Simplify right side
    131,851.12x = 12,995,577,426.27
  5. Step 5: Solve for x
    x = 12,995,577,426.27/131,851.12
  6. Step 6: Final answer
    x = 98,562.51

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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.