Home / 140,597.08-193,822.13-100,240.78

Finding the Fourth Proportional to 140,597.08, 193,822.13 and 100,240.78

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Solution

The fourth proportional to 140,597.08, 193,822.13 and 100,240.78 is: 138,188.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,597.08 : 193,822.13 = 100,240.78 : x
  2. Step 2: Convert to fraction form
    140,597.08/193,822.13 = 100,240.78/x
  3. Step 3: Cross multiply
    140,597.08x = 193,822.13 × 100,240.78
  4. Step 4: Simplify right side
    140,597.08x = 19,428,881,492.46
  5. Step 5: Solve for x
    x = 19,428,881,492.46/140,597.08
  6. Step 6: Final answer
    x = 138,188.37

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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.