Home / 432,686.12-649,029.60-112,837.74

Finding the Fourth Proportional to 432,686.12, 649,029.60 and 112,837.74

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Solution

The fourth proportional to 432,686.12, 649,029.60 and 112,837.74 is: 169,256.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,686.12 : 649,029.60 = 112,837.74 : x
  2. Step 2: Convert to fraction form
    432,686.12/649,029.60 = 112,837.74/x
  3. Step 3: Cross multiply
    432,686.12x = 649,029.60 × 112,837.74
  4. Step 4: Simplify right side
    432,686.12x = 73,235,033,257.10
  5. Step 5: Solve for x
    x = 73,235,033,257.10/432,686.12
  6. Step 6: Final answer
    x = 169,256.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.