Home / 146,543.30-219,814.95-72,661.70

Finding the Fourth Proportional to 146,543.30, 219,814.95 and 72,661.70

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Solution

The fourth proportional to 146,543.30, 219,814.95 and 72,661.70 is: 108,992.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,543.30 : 219,814.95 = 72,661.70 : x
  2. Step 2: Convert to fraction form
    146,543.30/219,814.95 = 72,661.70/x
  3. Step 3: Cross multiply
    146,543.30x = 219,814.95 × 72,661.70
  4. Step 4: Simplify right side
    146,543.30x = 15,972,127,952.42
  5. Step 5: Solve for x
    x = 15,972,127,952.42/146,543.30
  6. Step 6: Final answer
    x = 108,992.55

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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.