Home / 112,739.19-155,581.77-61,756.62

Finding the Fourth Proportional to 112,739.19, 155,581.77 and 61,756.62

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Solution

The fourth proportional to 112,739.19, 155,581.77 and 61,756.62 is: 85,225.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,739.19 : 155,581.77 = 61,756.62 : x
  2. Step 2: Convert to fraction form
    112,739.19/155,581.77 = 61,756.62/x
  3. Step 3: Cross multiply
    112,739.19x = 155,581.77 × 61,756.62
  4. Step 4: Simplify right side
    112,739.19x = 9,608,204,248.82
  5. Step 5: Solve for x
    x = 9,608,204,248.82/112,739.19
  6. Step 6: Final answer
    x = 85,225.06

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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.