Home / 140,700.24-194,127.84-90,428.40

Finding the Fourth Proportional to 140,700.24, 194,127.84 and 90,428.40

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Solution

The fourth proportional to 140,700.24, 194,127.84 and 90,428.40 is: 124,766.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,700.24 : 194,127.84 = 90,428.40 : x
  2. Step 2: Convert to fraction form
    140,700.24/194,127.84 = 90,428.40/x
  3. Step 3: Cross multiply
    140,700.24x = 194,127.84 × 90,428.40
  4. Step 4: Simplify right side
    140,700.24x = 17,554,669,966.66
  5. Step 5: Solve for x
    x = 17,554,669,966.66/140,700.24
  6. Step 6: Final answer
    x = 124,766.45

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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.