Home / 140,747.13-194,235.71-77,088.42

Finding the Fourth Proportional to 140,747.13, 194,235.71 and 77,088.42

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Solution

The fourth proportional to 140,747.13, 194,235.71 and 77,088.42 is: 106,384.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,747.13 : 194,235.71 = 77,088.42 : x
  2. Step 2: Convert to fraction form
    140,747.13/194,235.71 = 77,088.42/x
  3. Step 3: Cross multiply
    140,747.13x = 194,235.71 × 77,088.42
  4. Step 4: Simplify right side
    140,747.13x = 14,973,323,606.04
  5. Step 5: Solve for x
    x = 14,973,323,606.04/140,747.13
  6. Step 6: Final answer
    x = 106,384.57

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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.