Home / 158,788.64-238,188-79,859.76

Finding the Fourth Proportional to 158,788.64, 238,188 and 79,859.76

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Solution

The fourth proportional to 158,788.64, 238,188 and 79,859.76 is: 119,792.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,788.64 : 238,188 = 79,859.76 : x
  2. Step 2: Convert to fraction form
    158,788.64/238,188 = 79,859.76/x
  3. Step 3: Cross multiply
    158,788.64x = 238,188 × 79,859.76
  4. Step 4: Simplify right side
    158,788.64x = 19,021,636,514.88
  5. Step 5: Solve for x
    x = 19,021,636,514.88/158,788.64
  6. Step 6: Final answer
    x = 119,792.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.