Home / 127,635.46-176,134-79,915.12

Finding the Fourth Proportional to 127,635.46, 176,134 and 79,915.12

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Solution

The fourth proportional to 127,635.46, 176,134 and 79,915.12 is: 110,281.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,635.46 : 176,134 = 79,915.12 : x
  2. Step 2: Convert to fraction form
    127,635.46/176,134 = 79,915.12/x
  3. Step 3: Cross multiply
    127,635.46x = 176,134 × 79,915.12
  4. Step 4: Simplify right side
    127,635.46x = 14,075,769,746.08
  5. Step 5: Solve for x
    x = 14,075,769,746.08/127,635.46
  6. Step 6: Final answer
    x = 110,281.03

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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.