Home / 106,449.60-146,931.12-74,626.32

Finding the Fourth Proportional to 106,449.60, 146,931.12 and 74,626.32

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Solution

The fourth proportional to 106,449.60, 146,931.12 and 74,626.32 is: 103,005.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,449.60 : 146,931.12 = 74,626.32 : x
  2. Step 2: Convert to fraction form
    106,449.60/146,931.12 = 74,626.32/x
  3. Step 3: Cross multiply
    106,449.60x = 146,931.12 × 74,626.32
  4. Step 4: Simplify right side
    106,449.60x = 10,964,928,779.08
  5. Step 5: Solve for x
    x = 10,964,928,779.08/106,449.60
  6. Step 6: Final answer
    x = 103,005.82

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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.