Home / 134,335.65-185,383.20-73,905

Finding the Fourth Proportional to 134,335.65, 185,383.20 and 73,905

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Solution

The fourth proportional to 134,335.65, 185,383.20 and 73,905 is: 101,988.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,335.65 : 185,383.20 = 73,905 : x
  2. Step 2: Convert to fraction form
    134,335.65/185,383.20 = 73,905/x
  3. Step 3: Cross multiply
    134,335.65x = 185,383.20 × 73,905
  4. Step 4: Simplify right side
    134,335.65x = 13,700,745,396
  5. Step 5: Solve for x
    x = 13,700,745,396/134,335.65
  6. Step 6: Final answer
    x = 101,988.90

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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.