Home / 149,001.42-205,681.53-91,663.98

Finding the Fourth Proportional to 149,001.42, 205,681.53 and 91,663.98

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Solution

The fourth proportional to 149,001.42, 205,681.53 and 91,663.98 is: 126,532.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,001.42 : 205,681.53 = 91,663.98 : x
  2. Step 2: Convert to fraction form
    149,001.42/205,681.53 = 91,663.98/x
  3. Step 3: Cross multiply
    149,001.42x = 205,681.53 × 91,663.98
  4. Step 4: Simplify right side
    149,001.42x = 18,853,587,193.97
  5. Step 5: Solve for x
    x = 18,853,587,193.97/149,001.42
  6. Step 6: Final answer
    x = 126,532.94

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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.