Home / 120,510.07-180,723.44-49,412.52

Finding the Fourth Proportional to 120,510.07, 180,723.44 and 49,412.52

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Solution

The fourth proportional to 120,510.07, 180,723.44 and 49,412.52 is: 74,101.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,510.07 : 180,723.44 = 49,412.52 : x
  2. Step 2: Convert to fraction form
    120,510.07/180,723.44 = 49,412.52/x
  3. Step 3: Cross multiply
    120,510.07x = 180,723.44 × 49,412.52
  4. Step 4: Simplify right side
    120,510.07x = 8,930,000,346.41
  5. Step 5: Solve for x
    x = 8,930,000,346.41/120,510.07
  6. Step 6: Final answer
    x = 74,101.70

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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.