Home / 139,966.68-193,156.02-76,304.40

Finding the Fourth Proportional to 139,966.68, 193,156.02 and 76,304.40

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Solution

The fourth proportional to 139,966.68, 193,156.02 and 76,304.40 is: 105,301.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,966.68 : 193,156.02 = 76,304.40 : x
  2. Step 2: Convert to fraction form
    139,966.68/193,156.02 = 76,304.40/x
  3. Step 3: Cross multiply
    139,966.68x = 193,156.02 × 76,304.40
  4. Step 4: Simplify right side
    139,966.68x = 14,738,654,212.49
  5. Step 5: Solve for x
    x = 14,738,654,212.49/139,966.68
  6. Step 6: Final answer
    x = 105,301.16

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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.