Home / 145,171.20-217,864.80-75,014.40

Finding the Fourth Proportional to 145,171.20, 217,864.80 and 75,014.40

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Solution

The fourth proportional to 145,171.20, 217,864.80 and 75,014.40 is: 112,577.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,171.20 : 217,864.80 = 75,014.40 : x
  2. Step 2: Convert to fraction form
    145,171.20/217,864.80 = 75,014.40/x
  3. Step 3: Cross multiply
    145,171.20x = 217,864.80 × 75,014.40
  4. Step 4: Simplify right side
    145,171.20x = 16,342,997,253.12
  5. Step 5: Solve for x
    x = 16,342,997,253.12/145,171.20
  6. Step 6: Final answer
    x = 112,577.41

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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.