Home / 100,975.20-151,462.80-69,482.40

Finding the Fourth Proportional to 100,975.20, 151,462.80 and 69,482.40

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Solution

The fourth proportional to 100,975.20, 151,462.80 and 69,482.40 is: 104,223.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,975.20 : 151,462.80 = 69,482.40 : x
  2. Step 2: Convert to fraction form
    100,975.20/151,462.80 = 69,482.40/x
  3. Step 3: Cross multiply
    100,975.20x = 151,462.80 × 69,482.40
  4. Step 4: Simplify right side
    100,975.20x = 10,523,998,854.72
  5. Step 5: Solve for x
    x = 10,523,998,854.72/100,975.20
  6. Step 6: Final answer
    x = 104,223.60

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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.