Home / 112,125.89-154,734.95-61,138.22

Finding the Fourth Proportional to 112,125.89, 154,734.95 and 61,138.22

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Solution

The fourth proportional to 112,125.89, 154,734.95 and 61,138.22 is: 84,371.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,125.89 : 154,734.95 = 61,138.22 : x
  2. Step 2: Convert to fraction form
    112,125.89/154,734.95 = 61,138.22/x
  3. Step 3: Cross multiply
    112,125.89x = 154,734.95 × 61,138.22
  4. Step 4: Simplify right side
    112,125.89x = 9,460,218,793.96
  5. Step 5: Solve for x
    x = 9,460,218,793.96/112,125.89
  6. Step 6: Final answer
    x = 84,371.40

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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.