Home / 133,312.57-199,969.06-53,386.53

Finding the Fourth Proportional to 133,312.57, 199,969.06 and 53,386.53

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Solution

The fourth proportional to 133,312.57, 199,969.06 and 53,386.53 is: 80,079.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,312.57 : 199,969.06 = 53,386.53 : x
  2. Step 2: Convert to fraction form
    133,312.57/199,969.06 = 53,386.53/x
  3. Step 3: Cross multiply
    133,312.57x = 199,969.06 × 53,386.53
  4. Step 4: Simplify right side
    133,312.57x = 10,675,654,220.76
  5. Step 5: Solve for x
    x = 10,675,654,220.76/133,312.57
  6. Step 6: Final answer
    x = 80,079.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.