Home / 112,610.34-155,402.29-61,623.09

Finding the Fourth Proportional to 112,610.34, 155,402.29 and 61,623.09

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Solution

The fourth proportional to 112,610.34, 155,402.29 and 61,623.09 is: 85,039.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,610.34 : 155,402.29 = 61,623.09 : x
  2. Step 2: Convert to fraction form
    112,610.34/155,402.29 = 61,623.09/x
  3. Step 3: Cross multiply
    112,610.34x = 155,402.29 × 61,623.09
  4. Step 4: Simplify right side
    112,610.34x = 9,576,368,441.72
  5. Step 5: Solve for x
    x = 9,576,368,441.72/112,610.34
  6. Step 6: Final answer
    x = 85,039.87

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1.5x scale

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.