Home / 112,107.54-154,707.38-61,806.54

Finding the Fourth Proportional to 112,107.54, 154,707.38 and 61,806.54

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Solution

The fourth proportional to 112,107.54, 154,707.38 and 61,806.54 is: 85,292.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,107.54 : 154,707.38 = 61,806.54 : x
  2. Step 2: Convert to fraction form
    112,107.54/154,707.38 = 61,806.54/x
  3. Step 3: Cross multiply
    112,107.54x = 154,707.38 × 61,806.54
  4. Step 4: Simplify right side
    112,107.54x = 9,561,927,870.27
  5. Step 5: Solve for x
    x = 9,561,927,870.27/112,107.54
  6. Step 6: Final answer
    x = 85,292.46

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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.