Home / 185,748.84-278,458.02-80,510.40

Finding the Fourth Proportional to 185,748.84, 278,458.02 and 80,510.40

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Solution

The fourth proportional to 185,748.84, 278,458.02 and 80,510.40 is: 120,693.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,748.84 : 278,458.02 = 80,510.40 : x
  2. Step 2: Convert to fraction form
    185,748.84/278,458.02 = 80,510.40/x
  3. Step 3: Cross multiply
    185,748.84x = 278,458.02 × 80,510.40
  4. Step 4: Simplify right side
    185,748.84x = 22,418,766,573.41
  5. Step 5: Solve for x
    x = 22,418,766,573.41/185,748.84
  6. Step 6: Final answer
    x = 120,693.98

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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.