Home / 145,619.27-218,456.45-56,867.16

Finding the Fourth Proportional to 145,619.27, 218,456.45 and 56,867.16

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Solution

The fourth proportional to 145,619.27, 218,456.45 and 56,867.16 is: 85,311.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,619.27 : 218,456.45 = 56,867.16 : x
  2. Step 2: Convert to fraction form
    145,619.27/218,456.45 = 56,867.16/x
  3. Step 3: Cross multiply
    145,619.27x = 218,456.45 × 56,867.16
  4. Step 4: Simplify right side
    145,619.27x = 12,422,997,610.85
  5. Step 5: Solve for x
    x = 12,422,997,610.85/145,619.27
  6. Step 6: Final answer
    x = 85,311.50

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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.