Home / 106,980.32-147,657.60-71,171.84

Finding the Fourth Proportional to 106,980.32, 147,657.60 and 71,171.84

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Solution

The fourth proportional to 106,980.32, 147,657.60 and 71,171.84 is: 98,233.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,980.32 : 147,657.60 = 71,171.84 : x
  2. Step 2: Convert to fraction form
    106,980.32/147,657.60 = 71,171.84/x
  3. Step 3: Cross multiply
    106,980.32x = 147,657.60 × 71,171.84
  4. Step 4: Simplify right side
    106,980.32x = 10,509,063,081.98
  5. Step 5: Solve for x
    x = 10,509,063,081.98/106,980.32
  6. Step 6: Final answer
    x = 98,233.61

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1.5x scale

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.