Home / 161,543.41-242,315.19-72,693.13

Finding the Fourth Proportional to 161,543.41, 242,315.19 and 72,693.13

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Solution

The fourth proportional to 161,543.41, 242,315.19 and 72,693.13 is: 109,039.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,543.41 : 242,315.19 = 72,693.13 : x
  2. Step 2: Convert to fraction form
    161,543.41/242,315.19 = 72,693.13/x
  3. Step 3: Cross multiply
    161,543.41x = 242,315.19 × 72,693.13
  4. Step 4: Simplify right side
    161,543.41x = 17,614,649,607.64
  5. Step 5: Solve for x
    x = 17,614,649,607.64/161,543.41
  6. Step 6: Final answer
    x = 109,039.73

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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.