Home / 131,542.07-181,527.84-71,112.77

Finding the Fourth Proportional to 131,542.07, 181,527.84 and 71,112.77

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Solution

The fourth proportional to 131,542.07, 181,527.84 and 71,112.77 is: 98,135.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,542.07 : 181,527.84 = 71,112.77 : x
  2. Step 2: Convert to fraction form
    131,542.07/181,527.84 = 71,112.77/x
  3. Step 3: Cross multiply
    131,542.07x = 181,527.84 × 71,112.77
  4. Step 4: Simplify right side
    131,542.07x = 12,908,947,534.52
  5. Step 5: Solve for x
    x = 12,908,947,534.52/131,542.07
  6. Step 6: Final answer
    x = 98,135.51

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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.