Home / 111,707-154,155.66-63,976.16

Finding the Fourth Proportional to 111,707, 154,155.66 and 63,976.16

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Solution

The fourth proportional to 111,707, 154,155.66 and 63,976.16 is: 88,287.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,707 : 154,155.66 = 63,976.16 : x
  2. Step 2: Convert to fraction form
    111,707/154,155.66 = 63,976.16/x
  3. Step 3: Cross multiply
    111,707x = 154,155.66 × 63,976.16
  4. Step 4: Simplify right side
    111,707x = 9,862,287,169.07
  5. Step 5: Solve for x
    x = 9,862,287,169.07/111,707
  6. Step 6: Final answer
    x = 88,287.10

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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.