Home / 112,730.25-155,567.46-61,743

Finding the Fourth Proportional to 112,730.25, 155,567.46 and 61,743

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Solution

The fourth proportional to 112,730.25, 155,567.46 and 61,743 is: 85,205.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,730.25 : 155,567.46 = 61,743 : x
  2. Step 2: Convert to fraction form
    112,730.25/155,567.46 = 61,743/x
  3. Step 3: Cross multiply
    112,730.25x = 155,567.46 × 61,743
  4. Step 4: Simplify right side
    112,730.25x = 9,605,201,682.78
  5. Step 5: Solve for x
    x = 9,605,201,682.78/112,730.25
  6. Step 6: Final answer
    x = 85,205.18

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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.