Home / 131,112.28-180,934.56-74,534.56

Finding the Fourth Proportional to 131,112.28, 180,934.56 and 74,534.56

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Solution

The fourth proportional to 131,112.28, 180,934.56 and 74,534.56 is: 102,857.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,112.28 : 180,934.56 = 74,534.56 : x
  2. Step 2: Convert to fraction form
    131,112.28/180,934.56 = 74,534.56/x
  3. Step 3: Cross multiply
    131,112.28x = 180,934.56 × 74,534.56
  4. Step 4: Simplify right side
    131,112.28x = 13,485,877,818.39
  5. Step 5: Solve for x
    x = 13,485,877,818.39/131,112.28
  6. Step 6: Final answer
    x = 102,857.47

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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.