Home / 109,401.24-150,898.77-66,980.76

Finding the Fourth Proportional to 109,401.24, 150,898.77 and 66,980.76

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Solution

The fourth proportional to 109,401.24, 150,898.77 and 66,980.76 is: 92,387.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,401.24 : 150,898.77 = 66,980.76 : x
  2. Step 2: Convert to fraction form
    109,401.24/150,898.77 = 66,980.76/x
  3. Step 3: Cross multiply
    109,401.24x = 150,898.77 × 66,980.76
  4. Step 4: Simplify right side
    109,401.24x = 10,107,314,297.67
  5. Step 5: Solve for x
    x = 10,107,314,297.67/109,401.24
  6. Step 6: Final answer
    x = 92,387.57

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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.