Home / 112,779.70-155,634.26-61,792.02

Finding the Fourth Proportional to 112,779.70, 155,634.26 and 61,792.02

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Solution

The fourth proportional to 112,779.70, 155,634.26 and 61,792.02 is: 85,272.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,779.70 : 155,634.26 = 61,792.02 : x
  2. Step 2: Convert to fraction form
    112,779.70/155,634.26 = 61,792.02/x
  3. Step 3: Cross multiply
    112,779.70x = 155,634.26 × 61,792.02
  4. Step 4: Simplify right side
    112,779.70x = 9,616,955,306.61
  5. Step 5: Solve for x
    x = 9,616,955,306.61/112,779.70
  6. Step 6: Final answer
    x = 85,272.04

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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.