Home / 122,140.44-168,505.28-76,173.04

Finding the Fourth Proportional to 122,140.44, 168,505.28 and 76,173.04

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Solution

The fourth proportional to 122,140.44, 168,505.28 and 76,173.04 is: 105,088.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,140.44 : 168,505.28 = 76,173.04 : x
  2. Step 2: Convert to fraction form
    122,140.44/168,505.28 = 76,173.04/x
  3. Step 3: Cross multiply
    122,140.44x = 168,505.28 × 76,173.04
  4. Step 4: Simplify right side
    122,140.44x = 12,835,559,433.65
  5. Step 5: Solve for x
    x = 12,835,559,433.65/122,140.44
  6. Step 6: Final answer
    x = 105,088.53

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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.