Home / 132,839.17-183,316.86-72,409.81

Finding the Fourth Proportional to 132,839.17, 183,316.86 and 72,409.81

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Solution

The fourth proportional to 132,839.17, 183,316.86 and 72,409.81 is: 99,924.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,839.17 : 183,316.86 = 72,409.81 : x
  2. Step 2: Convert to fraction form
    132,839.17/183,316.86 = 72,409.81/x
  3. Step 3: Cross multiply
    132,839.17x = 183,316.86 × 72,409.81
  4. Step 4: Simplify right side
    132,839.17x = 13,273,939,002.40
  5. Step 5: Solve for x
    x = 13,273,939,002.40/132,839.17
  6. Step 6: Final answer
    x = 99,924.89

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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.