Home / 125,106.32-187,638.33-35,128.40

Finding the Fourth Proportional to 125,106.32, 187,638.33 and 35,128.40

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Solution

The fourth proportional to 125,106.32, 187,638.33 and 35,128.40 is: 52,686.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,106.32 : 187,638.33 = 35,128.40 : x
  2. Step 2: Convert to fraction form
    125,106.32/187,638.33 = 35,128.40/x
  3. Step 3: Cross multiply
    125,106.32x = 187,638.33 × 35,128.40
  4. Step 4: Simplify right side
    125,106.32x = 6,591,434,311.57
  5. Step 5: Solve for x
    x = 6,591,434,311.57/125,106.32
  6. Step 6: Final answer
    x = 52,686.66

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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.