Home / 127,635.77-176,134.43-79,915.43

Finding the Fourth Proportional to 127,635.77, 176,134.43 and 79,915.43

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Solution

The fourth proportional to 127,635.77, 176,134.43 and 79,915.43 is: 110,281.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,635.77 : 176,134.43 = 79,915.43 : x
  2. Step 2: Convert to fraction form
    127,635.77/176,134.43 = 79,915.43/x
  3. Step 3: Cross multiply
    127,635.77x = 176,134.43 × 79,915.43
  4. Step 4: Simplify right side
    127,635.77x = 14,075,857,830.58
  5. Step 5: Solve for x
    x = 14,075,857,830.58/127,635.77
  6. Step 6: Final answer
    x = 110,281.45

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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.