Home / 140,712.24-194,144.40-90,440.40

Finding the Fourth Proportional to 140,712.24, 194,144.40 and 90,440.40

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Solution

The fourth proportional to 140,712.24, 194,144.40 and 90,440.40 is: 124,783.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,712.24 : 194,144.40 = 90,440.40 : x
  2. Step 2: Convert to fraction form
    140,712.24/194,144.40 = 90,440.40/x
  3. Step 3: Cross multiply
    140,712.24x = 194,144.40 × 90,440.40
  4. Step 4: Simplify right side
    140,712.24x = 17,558,497,193.76
  5. Step 5: Solve for x
    x = 17,558,497,193.76/140,712.24
  6. Step 6: Final answer
    x = 124,783.01

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1.5x scale

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.