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Finding the Fourth Proportional to 115,510.40, 173,265.60 and 84,017.60

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Solution

The fourth proportional to 115,510.40, 173,265.60 and 84,017.60 is: 126,026.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,510.40 : 173,265.60 = 84,017.60 : x
  2. Step 2: Convert to fraction form
    115,510.40/173,265.60 = 84,017.60/x
  3. Step 3: Cross multiply
    115,510.40x = 173,265.60 × 84,017.60
  4. Step 4: Simplify right side
    115,510.40x = 14,557,359,874.56
  5. Step 5: Solve for x
    x = 14,557,359,874.56/115,510.40
  6. Step 6: Final answer
    x = 126,026.40

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1.5x scale

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.