Home / 175,939.10-242,828.46-100,487.60

Finding the Fourth Proportional to 175,939.10, 242,828.46 and 100,487.60

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Solution

The fourth proportional to 175,939.10, 242,828.46 and 100,487.60 is: 138,691.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,939.10 : 242,828.46 = 100,487.60 : x
  2. Step 2: Convert to fraction form
    175,939.10/242,828.46 = 100,487.60/x
  3. Step 3: Cross multiply
    175,939.10x = 242,828.46 × 100,487.60
  4. Step 4: Simplify right side
    175,939.10x = 24,401,249,157.10
  5. Step 5: Solve for x
    x = 24,401,249,157.10/175,939.10
  6. Step 6: Final answer
    x = 138,691.45

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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.