Home / 131,784.07-181,862.37-71,355.46

Finding the Fourth Proportional to 131,784.07, 181,862.37 and 71,355.46

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Solution

The fourth proportional to 131,784.07, 181,862.37 and 71,355.46 is: 98,470.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,784.07 : 181,862.37 = 71,355.46 : x
  2. Step 2: Convert to fraction form
    131,784.07/181,862.37 = 71,355.46/x
  3. Step 3: Cross multiply
    131,784.07x = 181,862.37 × 71,355.46
  4. Step 4: Simplify right side
    131,784.07x = 12,976,873,068.04
  5. Step 5: Solve for x
    x = 12,976,873,068.04/131,784.07
  6. Step 6: Final answer
    x = 98,470.73

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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.