Home / 112,886.85-155,785.61-61,904.24

Finding the Fourth Proportional to 112,886.85, 155,785.61 and 61,904.24

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Solution

The fourth proportional to 112,886.85, 155,785.61 and 61,904.24 is: 85,428.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,886.85 : 155,785.61 = 61,904.24 : x
  2. Step 2: Convert to fraction form
    112,886.85/155,785.61 = 61,904.24/x
  3. Step 3: Cross multiply
    112,886.85x = 155,785.61 × 61,904.24
  4. Step 4: Simplify right side
    112,886.85x = 9,643,788,701.54
  5. Step 5: Solve for x
    x = 9,643,788,701.54/112,886.85
  6. Step 6: Final answer
    x = 85,428.81

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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.