Home / 125,868.56-173,699.16-72,156.68

Finding the Fourth Proportional to 125,868.56, 173,699.16 and 72,156.68

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Solution

The fourth proportional to 125,868.56, 173,699.16 and 72,156.68 is: 99,576.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,868.56 : 173,699.16 = 72,156.68 : x
  2. Step 2: Convert to fraction form
    125,868.56/173,699.16 = 72,156.68/x
  3. Step 3: Cross multiply
    125,868.56x = 173,699.16 × 72,156.68
  4. Step 4: Simplify right side
    125,868.56x = 12,533,554,704.39
  5. Step 5: Solve for x
    x = 12,533,554,704.39/125,868.56
  6. Step 6: Final answer
    x = 99,576.53

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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.