Home / 134,433.60-201,407.40-78,227.70

Finding the Fourth Proportional to 134,433.60, 201,407.40 and 78,227.70

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Solution

The fourth proportional to 134,433.60, 201,407.40 and 78,227.70 is: 117,200.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,433.60 : 201,407.40 = 78,227.70 : x
  2. Step 2: Convert to fraction form
    134,433.60/201,407.40 = 78,227.70/x
  3. Step 3: Cross multiply
    134,433.60x = 201,407.40 × 78,227.70
  4. Step 4: Simplify right side
    134,433.60x = 15,755,637,664.98
  5. Step 5: Solve for x
    x = 15,755,637,664.98/134,433.60
  6. Step 6: Final answer
    x = 117,200.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.