Home / 126,885.66-190,350.45-42,654.06

Finding the Fourth Proportional to 126,885.66, 190,350.45 and 42,654.06

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Solution

The fourth proportional to 126,885.66, 190,350.45 and 42,654.06 is: 63,988.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,885.66 : 190,350.45 = 42,654.06 : x
  2. Step 2: Convert to fraction form
    126,885.66/190,350.45 = 42,654.06/x
  3. Step 3: Cross multiply
    126,885.66x = 190,350.45 × 42,654.06
  4. Step 4: Simplify right side
    126,885.66x = 8,119,219,515.33
  5. Step 5: Solve for x
    x = 8,119,219,515.33/126,885.66
  6. Step 6: Final answer
    x = 63,988.47

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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.