Home / 111,140.66-153,445.65-99,183.46

Finding the Fourth Proportional to 111,140.66, 153,445.65 and 99,183.46

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Solution

The fourth proportional to 111,140.66, 153,445.65 and 99,183.46 is: 136,937.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,140.66 : 153,445.65 = 99,183.46 : x
  2. Step 2: Convert to fraction form
    111,140.66/153,445.65 = 99,183.46/x
  3. Step 3: Cross multiply
    111,140.66x = 153,445.65 × 99,183.46
  4. Step 4: Simplify right side
    111,140.66x = 15,219,270,488.95
  5. Step 5: Solve for x
    x = 15,219,270,488.95/111,140.66
  6. Step 6: Final answer
    x = 136,937.02

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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.