Home / 132,889.78-183,381.15-72,459.93

Finding the Fourth Proportional to 132,889.78, 183,381.15 and 72,459.93

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Solution

The fourth proportional to 132,889.78, 183,381.15 and 72,459.93 is: 99,991.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,889.78 : 183,381.15 = 72,459.93 : x
  2. Step 2: Convert to fraction form
    132,889.78/183,381.15 = 72,459.93/x
  3. Step 3: Cross multiply
    132,889.78x = 183,381.15 × 72,459.93
  4. Step 4: Simplify right side
    132,889.78x = 13,287,784,930.02
  5. Step 5: Solve for x
    x = 13,287,784,930.02/132,889.78
  6. Step 6: Final answer
    x = 99,991.03

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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.