Home / 125,623.20-188,434.80-55,466.40

Finding the Fourth Proportional to 125,623.20, 188,434.80 and 55,466.40

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Solution

The fourth proportional to 125,623.20, 188,434.80 and 55,466.40 is: 83,199.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,623.20 : 188,434.80 = 55,466.40 : x
  2. Step 2: Convert to fraction form
    125,623.20/188,434.80 = 55,466.40/x
  3. Step 3: Cross multiply
    125,623.20x = 188,434.80 × 55,466.40
  4. Step 4: Simplify right side
    125,623.20x = 10,451,799,990.72
  5. Step 5: Solve for x
    x = 10,451,799,990.72/125,623.20
  6. Step 6: Final answer
    x = 83,199.60

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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.