Home / 153,727.06-230,660.64-78,899.75

Finding the Fourth Proportional to 153,727.06, 230,660.64 and 78,899.75

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Solution

The fourth proportional to 153,727.06, 230,660.64 and 78,899.75 is: 118,385.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,727.06 : 230,660.64 = 78,899.75 : x
  2. Step 2: Convert to fraction form
    153,727.06/230,660.64 = 78,899.75/x
  3. Step 3: Cross multiply
    153,727.06x = 230,660.64 × 78,899.75
  4. Step 4: Simplify right side
    153,727.06x = 18,199,065,677.54
  5. Step 5: Solve for x
    x = 18,199,065,677.54/153,727.06
  6. Step 6: Final answer
    x = 118,385.57

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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.