Home / 136,817.60-188,886.76-104,296.88

Finding the Fourth Proportional to 136,817.60, 188,886.76 and 104,296.88

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Solution

The fourth proportional to 136,817.60, 188,886.76 and 104,296.88 is: 143,989.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,817.60 : 188,886.76 = 104,296.88 : x
  2. Step 2: Convert to fraction form
    136,817.60/188,886.76 = 104,296.88/x
  3. Step 3: Cross multiply
    136,817.60x = 188,886.76 × 104,296.88
  4. Step 4: Simplify right side
    136,817.60x = 19,700,299,741.31
  5. Step 5: Solve for x
    x = 19,700,299,741.31/136,817.60
  6. Step 6: Final answer
    x = 143,989.51

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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.