Home / 158,780.64-238,176-79,851.72

Finding the Fourth Proportional to 158,780.64, 238,176 and 79,851.72

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Solution

The fourth proportional to 158,780.64, 238,176 and 79,851.72 is: 119,780.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,780.64 : 238,176 = 79,851.72 : x
  2. Step 2: Convert to fraction form
    158,780.64/238,176 = 79,851.72/x
  3. Step 3: Cross multiply
    158,780.64x = 238,176 × 79,851.72
  4. Step 4: Simplify right side
    158,780.64x = 19,018,763,262.72
  5. Step 5: Solve for x
    x = 19,018,763,262.72/158,780.64
  6. Step 6: Final answer
    x = 119,780.11

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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.