Home / 112,650.49-155,447.12-67,319.45

Finding the Fourth Proportional to 112,650.49, 155,447.12 and 67,319.45

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Solution

The fourth proportional to 112,650.49, 155,447.12 and 67,319.45 is: 92,894.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,650.49 : 155,447.12 = 67,319.45 : x
  2. Step 2: Convert to fraction form
    112,650.49/155,447.12 = 67,319.45/x
  3. Step 3: Cross multiply
    112,650.49x = 155,447.12 × 67,319.45
  4. Step 4: Simplify right side
    112,650.49x = 10,464,614,622.48
  5. Step 5: Solve for x
    x = 10,464,614,622.48/112,650.49
  6. Step 6: Final answer
    x = 92,894.53

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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.