Home / 147,378.48-203,385.60-86,963.84

Finding the Fourth Proportional to 147,378.48, 203,385.60 and 86,963.84

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Solution

The fourth proportional to 147,378.48, 203,385.60 and 86,963.84 is: 120,012.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,378.48 : 203,385.60 = 86,963.84 : x
  2. Step 2: Convert to fraction form
    147,378.48/203,385.60 = 86,963.84/x
  3. Step 3: Cross multiply
    147,378.48x = 203,385.60 × 86,963.84
  4. Step 4: Simplify right side
    147,378.48x = 17,687,192,776.70
  5. Step 5: Solve for x
    x = 17,687,192,776.70/147,378.48
  6. Step 6: Final answer
    x = 120,012.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.