Home / 140,041.94-193,256.96-79,612.60

Finding the Fourth Proportional to 140,041.94, 193,256.96 and 79,612.60

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Solution

The fourth proportional to 140,041.94, 193,256.96 and 79,612.60 is: 109,864.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,041.94 : 193,256.96 = 79,612.60 : x
  2. Step 2: Convert to fraction form
    140,041.94/193,256.96 = 79,612.60/x
  3. Step 3: Cross multiply
    140,041.94x = 193,256.96 × 79,612.60
  4. Step 4: Simplify right side
    140,041.94x = 15,385,688,663.04
  5. Step 5: Solve for x
    x = 15,385,688,663.04/140,041.94
  6. Step 6: Final answer
    x = 109,864.87

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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.