Home / 145,979.40-218,976.30-75,995.40

Finding the Fourth Proportional to 145,979.40, 218,976.30 and 75,995.40

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Solution

The fourth proportional to 145,979.40, 218,976.30 and 75,995.40 is: 113,996.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,979.40 : 218,976.30 = 75,995.40 : x
  2. Step 2: Convert to fraction form
    145,979.40/218,976.30 = 75,995.40/x
  3. Step 3: Cross multiply
    145,979.40x = 218,976.30 × 75,995.40
  4. Step 4: Simplify right side
    145,979.40x = 16,641,191,509.02
  5. Step 5: Solve for x
    x = 16,641,191,509.02/145,979.40
  6. Step 6: Final answer
    x = 113,996.85

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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.