Home / 138,694.17-191,346.60-102,482.92

Finding the Fourth Proportional to 138,694.17, 191,346.60 and 102,482.92

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Solution

The fourth proportional to 138,694.17, 191,346.60 and 102,482.92 is: 141,388.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,694.17 : 191,346.60 = 102,482.92 : x
  2. Step 2: Convert to fraction form
    138,694.17/191,346.60 = 102,482.92/x
  3. Step 3: Cross multiply
    138,694.17x = 191,346.60 × 102,482.92
  4. Step 4: Simplify right side
    138,694.17x = 19,609,758,923.57
  5. Step 5: Solve for x
    x = 19,609,758,923.57/138,694.17
  6. Step 6: Final answer
    x = 141,388.48

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1.5x scale

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.