Home / 140,285.64-193,604.07-79,856.31

Finding the Fourth Proportional to 140,285.64, 193,604.07 and 79,856.31

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Solution

The fourth proportional to 140,285.64, 193,604.07 and 79,856.31 is: 110,207.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,285.64 : 193,604.07 = 79,856.31 : x
  2. Step 2: Convert to fraction form
    140,285.64/193,604.07 = 79,856.31/x
  3. Step 3: Cross multiply
    140,285.64x = 193,604.07 × 79,856.31
  4. Step 4: Simplify right side
    140,285.64x = 15,460,506,631.18
  5. Step 5: Solve for x
    x = 15,460,506,631.18/140,285.64
  6. Step 6: Final answer
    x = 110,207.34

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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.