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Finding the Fourth Proportional to 180,061.76, 248,478.54 and 99,487.55

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Solution

The fourth proportional to 180,061.76, 248,478.54 and 99,487.55 is: 137,289.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,061.76 : 248,478.54 = 99,487.55 : x
  2. Step 2: Convert to fraction form
    180,061.76/248,478.54 = 99,487.55/x
  3. Step 3: Cross multiply
    180,061.76x = 248,478.54 × 99,487.55
  4. Step 4: Simplify right side
    180,061.76x = 24,720,519,929.78
  5. Step 5: Solve for x
    x = 24,720,519,929.78/180,061.76
  6. Step 6: Final answer
    x = 137,289.12

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1.5x scale

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.