Home / 112,606.50-155,398.94-61,623.75

Finding the Fourth Proportional to 112,606.50, 155,398.94 and 61,623.75

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Solution

The fourth proportional to 112,606.50, 155,398.94 and 61,623.75 is: 85,041.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,606.50 : 155,398.94 = 61,623.75 : x
  2. Step 2: Convert to fraction form
    112,606.50/155,398.94 = 61,623.75/x
  3. Step 3: Cross multiply
    112,606.50x = 155,398.94 × 61,623.75
  4. Step 4: Simplify right side
    112,606.50x = 9,576,265,120.71
  5. Step 5: Solve for x
    x = 9,576,265,120.71/112,606.50
  6. Step 6: Final answer
    x = 85,041.85

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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.