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Finding the Fourth Proportional to 121,072.32, 181,491.84 and 37,946.88

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Solution

The fourth proportional to 121,072.32, 181,491.84 and 37,946.88 is: 56,883.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,072.32 : 181,491.84 = 37,946.88 : x
  2. Step 2: Convert to fraction form
    121,072.32/181,491.84 = 37,946.88/x
  3. Step 3: Cross multiply
    121,072.32x = 181,491.84 × 37,946.88
  4. Step 4: Simplify right side
    121,072.32x = 6,887,049,073.46
  5. Step 5: Solve for x
    x = 6,887,049,073.46/121,072.32
  6. Step 6: Final answer
    x = 56,883.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.