Home / 280,723.02-421,105.95-93,734.52

Finding the Fourth Proportional to 280,723.02, 421,105.95 and 93,734.52

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Solution

The fourth proportional to 280,723.02, 421,105.95 and 93,734.52 is: 140,608.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,723.02 : 421,105.95 = 93,734.52 : x
  2. Step 2: Convert to fraction form
    280,723.02/421,105.95 = 93,734.52/x
  3. Step 3: Cross multiply
    280,723.02x = 421,105.95 × 93,734.52
  4. Step 4: Simplify right side
    280,723.02x = 39,472,164,092.39
  5. Step 5: Solve for x
    x = 39,472,164,092.39/280,723.02
  6. Step 6: Final answer
    x = 140,608.93

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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.