Home / 131,648.08-197,899.80-105,637.36

Finding the Fourth Proportional to 131,648.08, 197,899.80 and 105,637.36

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Solution

The fourth proportional to 131,648.08, 197,899.80 and 105,637.36 is: 158,799.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,648.08 : 197,899.80 = 105,637.36 : x
  2. Step 2: Convert to fraction form
    131,648.08/197,899.80 = 105,637.36/x
  3. Step 3: Cross multiply
    131,648.08x = 197,899.80 × 105,637.36
  4. Step 4: Simplify right side
    131,648.08x = 20,905,612,416.53
  5. Step 5: Solve for x
    x = 20,905,612,416.53/131,648.08
  6. Step 6: Final answer
    x = 158,799.22

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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.