Home / 91,738.20-137,477.70-67,859.40

Finding the Fourth Proportional to 91,738.20, 137,477.70 and 67,859.40

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Solution

The fourth proportional to 91,738.20, 137,477.70 and 67,859.40 is: 101,693.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,738.20 : 137,477.70 = 67,859.40 : x
  2. Step 2: Convert to fraction form
    91,738.20/137,477.70 = 67,859.40/x
  3. Step 3: Cross multiply
    91,738.20x = 137,477.70 × 67,859.40
  4. Step 4: Simplify right side
    91,738.20x = 9,329,154,235.38
  5. Step 5: Solve for x
    x = 9,329,154,235.38/91,738.20
  6. Step 6: Final answer
    x = 101,693.23

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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.