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Finding the Fourth Proportional to 100,203.60, 150,013.80 and 60,740.40

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Solution

The fourth proportional to 100,203.60, 150,013.80 and 60,740.40 is: 90,933.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,203.60 : 150,013.80 = 60,740.40 : x
  2. Step 2: Convert to fraction form
    100,203.60/150,013.80 = 60,740.40/x
  3. Step 3: Cross multiply
    100,203.60x = 150,013.80 × 60,740.40
  4. Step 4: Simplify right side
    100,203.60x = 9,111,898,217.52
  5. Step 5: Solve for x
    x = 9,111,898,217.52/100,203.60
  6. Step 6: Final answer
    x = 90,933.84

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1.5x scale

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.