Home / 112,454.10-155,161.08-67,146.75

Finding the Fourth Proportional to 112,454.10, 155,161.08 and 67,146.75

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Solution

The fourth proportional to 112,454.10, 155,161.08 and 67,146.75 is: 92,647.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,454.10 : 155,161.08 = 67,146.75 : x
  2. Step 2: Convert to fraction form
    112,454.10/155,161.08 = 67,146.75/x
  3. Step 3: Cross multiply
    112,454.10x = 155,161.08 × 67,146.75
  4. Step 4: Simplify right side
    112,454.10x = 10,418,562,248.49
  5. Step 5: Solve for x
    x = 10,418,562,248.49/112,454.10
  6. Step 6: Final answer
    x = 92,647.24

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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.