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Finding the Fourth Proportional to 127,124.63, 175,359.07 and 79,294.91

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Solution

The fourth proportional to 127,124.63, 175,359.07 and 79,294.91 is: 109,381.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,124.63 : 175,359.07 = 79,294.91 : x
  2. Step 2: Convert to fraction form
    127,124.63/175,359.07 = 79,294.91/x
  3. Step 3: Cross multiply
    127,124.63x = 175,359.07 × 79,294.91
  4. Step 4: Simplify right side
    127,124.63x = 13,905,081,673.33
  5. Step 5: Solve for x
    x = 13,905,081,673.33/127,124.63
  6. Step 6: Final answer
    x = 109,381.49

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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.