Home / 112,873.47-155,767.14-61,890.86

Finding the Fourth Proportional to 112,873.47, 155,767.14 and 61,890.86

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Solution

The fourth proportional to 112,873.47, 155,767.14 and 61,890.86 is: 85,410.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,873.47 : 155,767.14 = 61,890.86 : x
  2. Step 2: Convert to fraction form
    112,873.47/155,767.14 = 61,890.86/x
  3. Step 3: Cross multiply
    112,873.47x = 155,767.14 × 61,890.86
  4. Step 4: Simplify right side
    112,873.47x = 9,640,561,475.50
  5. Step 5: Solve for x
    x = 9,640,561,475.50/112,873.47
  6. Step 6: Final answer
    x = 85,410.34

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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.