Home / 111,707.28-154,155.28-60,718.74

Finding the Fourth Proportional to 111,707.28, 154,155.28 and 60,718.74

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Solution

The fourth proportional to 111,707.28, 154,155.28 and 60,718.74 is: 83,791.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,707.28 : 154,155.28 = 60,718.74 : x
  2. Step 2: Convert to fraction form
    111,707.28/154,155.28 = 60,718.74/x
  3. Step 3: Cross multiply
    111,707.28x = 154,155.28 × 60,718.74
  4. Step 4: Simplify right side
    111,707.28x = 9,360,114,365.95
  5. Step 5: Solve for x
    x = 9,360,114,365.95/111,707.28
  6. Step 6: Final answer
    x = 83,791.44

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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.