Home / 136,844.01-188,842.95-76,415.72

Finding the Fourth Proportional to 136,844.01, 188,842.95 and 76,415.72

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Solution

The fourth proportional to 136,844.01, 188,842.95 and 76,415.72 is: 105,452.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,844.01 : 188,842.95 = 76,415.72 : x
  2. Step 2: Convert to fraction form
    136,844.01/188,842.95 = 76,415.72/x
  3. Step 3: Cross multiply
    136,844.01x = 188,842.95 × 76,415.72
  4. Step 4: Simplify right side
    136,844.01x = 14,430,569,046.96
  5. Step 5: Solve for x
    x = 14,430,569,046.96/136,844.01
  6. Step 6: Final answer
    x = 105,452.69

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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.