Home / 140,242.54-193,534.68-76,580.40

Finding the Fourth Proportional to 140,242.54, 193,534.68 and 76,580.40

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Solution

The fourth proportional to 140,242.54, 193,534.68 and 76,580.40 is: 105,680.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,242.54 : 193,534.68 = 76,580.40 : x
  2. Step 2: Convert to fraction form
    140,242.54/193,534.68 = 76,580.40/x
  3. Step 3: Cross multiply
    140,242.54x = 193,534.68 × 76,580.40
  4. Step 4: Simplify right side
    140,242.54x = 14,820,963,208.27
  5. Step 5: Solve for x
    x = 14,820,963,208.27/140,242.54
  6. Step 6: Final answer
    x = 105,680.94

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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.