Home / 104,955.10-157,432.65-100,872.70

Finding the Fourth Proportional to 104,955.10, 157,432.65 and 100,872.70

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Solution

The fourth proportional to 104,955.10, 157,432.65 and 100,872.70 is: 151,309.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,955.10 : 157,432.65 = 100,872.70 : x
  2. Step 2: Convert to fraction form
    104,955.10/157,432.65 = 100,872.70/x
  3. Step 3: Cross multiply
    104,955.10x = 157,432.65 × 100,872.70
  4. Step 4: Simplify right side
    104,955.10x = 15,880,656,473.66
  5. Step 5: Solve for x
    x = 15,880,656,473.66/104,955.10
  6. Step 6: Final answer
    x = 151,309.05

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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.