Home / 111,780.27-154,278.68-64,065.60

Finding the Fourth Proportional to 111,780.27, 154,278.68 and 64,065.60

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Solution

The fourth proportional to 111,780.27, 154,278.68 and 64,065.60 is: 88,423.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,780.27 : 154,278.68 = 64,065.60 : x
  2. Step 2: Convert to fraction form
    111,780.27/154,278.68 = 64,065.60/x
  3. Step 3: Cross multiply
    111,780.27x = 154,278.68 × 64,065.60
  4. Step 4: Simplify right side
    111,780.27x = 9,883,955,881.08
  5. Step 5: Solve for x
    x = 9,883,955,881.08/111,780.27
  6. Step 6: Final answer
    x = 88,423.08

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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.