Home / 129,112.96-193,675.20-40,368.28

Finding the Fourth Proportional to 129,112.96, 193,675.20 and 40,368.28

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Solution

The fourth proportional to 129,112.96, 193,675.20 and 40,368.28 is: 60,554.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,112.96 : 193,675.20 = 40,368.28 : x
  2. Step 2: Convert to fraction form
    129,112.96/193,675.20 = 40,368.28/x
  3. Step 3: Cross multiply
    129,112.96x = 193,675.20 × 40,368.28
  4. Step 4: Simplify right side
    129,112.96x = 7,818,334,702.66
  5. Step 5: Solve for x
    x = 7,818,334,702.66/129,112.96
  6. Step 6: Final answer
    x = 60,554.22

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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.