Home / 132,475.28-182,721.88-81,420.98

Finding the Fourth Proportional to 132,475.28, 182,721.88 and 81,420.98

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Solution

The fourth proportional to 132,475.28, 182,721.88 and 81,420.98 is: 112,303.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,475.28 : 182,721.88 = 81,420.98 : x
  2. Step 2: Convert to fraction form
    132,475.28/182,721.88 = 81,420.98/x
  3. Step 3: Cross multiply
    132,475.28x = 182,721.88 × 81,420.98
  4. Step 4: Simplify right side
    132,475.28x = 14,877,394,410.42
  5. Step 5: Solve for x
    x = 14,877,394,410.42/132,475.28
  6. Step 6: Final answer
    x = 112,303.17

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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.