Home / 132,142.16-182,356.29-71,712.81

Finding the Fourth Proportional to 132,142.16, 182,356.29 and 71,712.81

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Solution

The fourth proportional to 132,142.16, 182,356.29 and 71,712.81 is: 98,963.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,142.16 : 182,356.29 = 71,712.81 : x
  2. Step 2: Convert to fraction form
    132,142.16/182,356.29 = 71,712.81/x
  3. Step 3: Cross multiply
    132,142.16x = 182,356.29 × 71,712.81
  4. Step 4: Simplify right side
    132,142.16x = 13,077,281,977.07
  5. Step 5: Solve for x
    x = 13,077,281,977.07/132,142.16
  6. Step 6: Final answer
    x = 98,963.74

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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.