Home / 140,921.40-194,368.50-89,969.16

Finding the Fourth Proportional to 140,921.40, 194,368.50 and 89,969.16

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Solution

The fourth proportional to 140,921.40, 194,368.50 and 89,969.16 is: 124,091.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,921.40 : 194,368.50 = 89,969.16 : x
  2. Step 2: Convert to fraction form
    140,921.40/194,368.50 = 89,969.16/x
  3. Step 3: Cross multiply
    140,921.40x = 194,368.50 × 89,969.16
  4. Step 4: Simplify right side
    140,921.40x = 17,487,170,675.46
  5. Step 5: Solve for x
    x = 17,487,170,675.46/140,921.40
  6. Step 6: Final answer
    x = 124,091.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.