Home / 112,523.94-155,299.34-64,776.87

Finding the Fourth Proportional to 112,523.94, 155,299.34 and 64,776.87

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Solution

The fourth proportional to 112,523.94, 155,299.34 and 64,776.87 is: 89,401.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,523.94 : 155,299.34 = 64,776.87 : x
  2. Step 2: Convert to fraction form
    112,523.94/155,299.34 = 64,776.87/x
  3. Step 3: Cross multiply
    112,523.94x = 155,299.34 × 64,776.87
  4. Step 4: Simplify right side
    112,523.94x = 10,059,805,320.21
  5. Step 5: Solve for x
    x = 10,059,805,320.21/112,523.94
  6. Step 6: Final answer
    x = 89,401.47

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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.