Home / 158,742.60-219,057.93-87,123.84

Finding the Fourth Proportional to 158,742.60, 219,057.93 and 87,123.84

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Solution

The fourth proportional to 158,742.60, 219,057.93 and 87,123.84 is: 120,227.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,742.60 : 219,057.93 = 87,123.84 : x
  2. Step 2: Convert to fraction form
    158,742.60/219,057.93 = 87,123.84/x
  3. Step 3: Cross multiply
    158,742.60x = 219,057.93 × 87,123.84
  4. Step 4: Simplify right side
    158,742.60x = 19,085,168,044.05
  5. Step 5: Solve for x
    x = 19,085,168,044.05/158,742.60
  6. Step 6: Final answer
    x = 120,227.14

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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.