Home / 132,839.27-183,320.12-72,409.93

Finding the Fourth Proportional to 132,839.27, 183,320.12 and 72,409.93

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Solution

The fourth proportional to 132,839.27, 183,320.12 and 72,409.93 is: 99,926.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,839.27 : 183,320.12 = 72,409.93 : x
  2. Step 2: Convert to fraction form
    132,839.27/183,320.12 = 72,409.93/x
  3. Step 3: Cross multiply
    132,839.27x = 183,320.12 × 72,409.93
  4. Step 4: Simplify right side
    132,839.27x = 13,274,196,779.52
  5. Step 5: Solve for x
    x = 13,274,196,779.52/132,839.27
  6. Step 6: Final answer
    x = 99,926.75

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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.