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Finding the Fourth Proportional to 127,064.32, 175,234.02 and 79,322.08

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Solution

The fourth proportional to 127,064.32, 175,234.02 and 79,322.08 is: 109,392.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,064.32 : 175,234.02 = 79,322.08 : x
  2. Step 2: Convert to fraction form
    127,064.32/175,234.02 = 79,322.08/x
  3. Step 3: Cross multiply
    127,064.32x = 175,234.02 × 79,322.08
  4. Step 4: Simplify right side
    127,064.32x = 13,899,926,953.16
  5. Step 5: Solve for x
    x = 13,899,926,953.16/127,064.32
  6. Step 6: Final answer
    x = 109,392.84

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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.