Home / 111,129.17-153,357.07-60,140.79

Finding the Fourth Proportional to 111,129.17, 153,357.07 and 60,140.79

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Solution

The fourth proportional to 111,129.17, 153,357.07 and 60,140.79 is: 82,993.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,129.17 : 153,357.07 = 60,140.79 : x
  2. Step 2: Convert to fraction form
    111,129.17/153,357.07 = 60,140.79/x
  3. Step 3: Cross multiply
    111,129.17x = 153,357.07 × 60,140.79
  4. Step 4: Simplify right side
    111,129.17x = 9,223,015,341.89
  5. Step 5: Solve for x
    x = 9,223,015,341.89/111,129.17
  6. Step 6: Final answer
    x = 82,993.65

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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.