Home / 112,789.95-155,650.16-61,802.26

Finding the Fourth Proportional to 112,789.95, 155,650.16 and 61,802.26

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Solution

The fourth proportional to 112,789.95, 155,650.16 and 61,802.26 is: 85,287.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,789.95 : 155,650.16 = 61,802.26 : x
  2. Step 2: Convert to fraction form
    112,789.95/155,650.16 = 61,802.26/x
  3. Step 3: Cross multiply
    112,789.95x = 155,650.16 × 61,802.26
  4. Step 4: Simplify right side
    112,789.95x = 9,619,532,006.43
  5. Step 5: Solve for x
    x = 9,619,532,006.43/112,789.95
  6. Step 6: Final answer
    x = 85,287.14

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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.