Home / 112,343.56-155,034.18-61,357

Finding the Fourth Proportional to 112,343.56, 155,034.18 and 61,357

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Solution

The fourth proportional to 112,343.56, 155,034.18 and 61,357 is: 84,672.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,343.56 : 155,034.18 = 61,357 : x
  2. Step 2: Convert to fraction form
    112,343.56/155,034.18 = 61,357/x
  3. Step 3: Cross multiply
    112,343.56x = 155,034.18 × 61,357
  4. Step 4: Simplify right side
    112,343.56x = 9,512,432,182.26
  5. Step 5: Solve for x
    x = 9,512,432,182.26/112,343.56
  6. Step 6: Final answer
    x = 84,672.70

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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.