Home / 140,555.20-193,957.92-76,880.32

Finding the Fourth Proportional to 140,555.20, 193,957.92 and 76,880.32

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Solution

The fourth proportional to 140,555.20, 193,957.92 and 76,880.32 is: 106,090.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,555.20 : 193,957.92 = 76,880.32 : x
  2. Step 2: Convert to fraction form
    140,555.20/193,957.92 = 76,880.32/x
  3. Step 3: Cross multiply
    140,555.20x = 193,957.92 × 76,880.32
  4. Step 4: Simplify right side
    140,555.20x = 14,911,546,956.13
  5. Step 5: Solve for x
    x = 14,911,546,956.13/140,555.20
  6. Step 6: Final answer
    x = 106,090.33

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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.