Home / 100,937.20-151,405.80-48,319.60

Finding the Fourth Proportional to 100,937.20, 151,405.80 and 48,319.60

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Solution

The fourth proportional to 100,937.20, 151,405.80 and 48,319.60 is: 72,479.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,937.20 : 151,405.80 = 48,319.60 : x
  2. Step 2: Convert to fraction form
    100,937.20/151,405.80 = 48,319.60/x
  3. Step 3: Cross multiply
    100,937.20x = 151,405.80 × 48,319.60
  4. Step 4: Simplify right side
    100,937.20x = 7,315,867,693.68
  5. Step 5: Solve for x
    x = 7,315,867,693.68/100,937.20
  6. Step 6: Final answer
    x = 72,479.40

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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.