Home / 147,156.39-203,147.79-98,740.98

Finding the Fourth Proportional to 147,156.39, 203,147.79 and 98,740.98

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Solution

The fourth proportional to 147,156.39, 203,147.79 and 98,740.98 is: 136,310.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,156.39 : 203,147.79 = 98,740.98 : x
  2. Step 2: Convert to fraction form
    147,156.39/203,147.79 = 98,740.98/x
  3. Step 3: Cross multiply
    147,156.39x = 203,147.79 × 98,740.98
  4. Step 4: Simplify right side
    147,156.39x = 20,059,011,869.43
  5. Step 5: Solve for x
    x = 20,059,011,869.43/147,156.39
  6. Step 6: Final answer
    x = 136,310.85

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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.