Home / 111,901.20-154,430.65-61,600.20

Finding the Fourth Proportional to 111,901.20, 154,430.65 and 61,600.20

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Solution

The fourth proportional to 111,901.20, 154,430.65 and 61,600.20 is: 85,012.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,901.20 : 154,430.65 = 61,600.20 : x
  2. Step 2: Convert to fraction form
    111,901.20/154,430.65 = 61,600.20/x
  3. Step 3: Cross multiply
    111,901.20x = 154,430.65 × 61,600.20
  4. Step 4: Simplify right side
    111,901.20x = 9,512,958,926.13
  5. Step 5: Solve for x
    x = 9,512,958,926.13/111,901.20
  6. Step 6: Final answer
    x = 85,012.13

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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.