Home / 175,683.12-242,379.72-100,187.88

Finding the Fourth Proportional to 175,683.12, 242,379.72 and 100,187.88

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Solution

The fourth proportional to 175,683.12, 242,379.72 and 100,187.88 is: 138,223.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,683.12 : 242,379.72 = 100,187.88 : x
  2. Step 2: Convert to fraction form
    175,683.12/242,379.72 = 100,187.88/x
  3. Step 3: Cross multiply
    175,683.12x = 242,379.72 × 100,187.88
  4. Step 4: Simplify right side
    175,683.12x = 24,283,510,301.79
  5. Step 5: Solve for x
    x = 24,283,510,301.79/175,683.12
  6. Step 6: Final answer
    x = 138,223.36

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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.