Home / 125,736.30-188,823.15-66,687.30

Finding the Fourth Proportional to 125,736.30, 188,823.15 and 66,687.30

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Solution

The fourth proportional to 125,736.30, 188,823.15 and 66,687.30 is: 100,146.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,736.30 : 188,823.15 = 66,687.30 : x
  2. Step 2: Convert to fraction form
    125,736.30/188,823.15 = 66,687.30/x
  3. Step 3: Cross multiply
    125,736.30x = 188,823.15 × 66,687.30
  4. Step 4: Simplify right side
    125,736.30x = 12,592,106,051.00
  5. Step 5: Solve for x
    x = 12,592,106,051.00/125,736.30
  6. Step 6: Final answer
    x = 100,146.94

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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.