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Finding the Fourth Proportional to 112,180.80, 154,806.80 and 64,437.22

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Solution

The fourth proportional to 112,180.80, 154,806.80 and 64,437.22 is: 88,921.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,180.80 : 154,806.80 = 64,437.22 : x
  2. Step 2: Convert to fraction form
    112,180.80/154,806.80 = 64,437.22/x
  3. Step 3: Cross multiply
    112,180.80x = 154,806.80 × 64,437.22
  4. Step 4: Simplify right side
    112,180.80x = 9,975,319,700.42
  5. Step 5: Solve for x
    x = 9,975,319,700.42/112,180.80
  6. Step 6: Final answer
    x = 88,921.81

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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.