Home / 132,440.39-182,762.71-72,011.08

Finding the Fourth Proportional to 132,440.39, 182,762.71 and 72,011.08

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Solution

The fourth proportional to 132,440.39, 182,762.71 and 72,011.08 is: 99,372.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,440.39 : 182,762.71 = 72,011.08 : x
  2. Step 2: Convert to fraction form
    132,440.39/182,762.71 = 72,011.08/x
  3. Step 3: Cross multiply
    132,440.39x = 182,762.71 × 72,011.08
  4. Step 4: Simplify right side
    132,440.39x = 13,160,940,130.83
  5. Step 5: Solve for x
    x = 13,160,940,130.83/132,440.39
  6. Step 6: Final answer
    x = 99,372.56

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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.