Home / 143,871.48-198,613.08-111,534.66

Finding the Fourth Proportional to 143,871.48, 198,613.08 and 111,534.66

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Solution

The fourth proportional to 143,871.48, 198,613.08 and 111,534.66 is: 153,972.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,871.48 : 198,613.08 = 111,534.66 : x
  2. Step 2: Convert to fraction form
    143,871.48/198,613.08 = 111,534.66/x
  3. Step 3: Cross multiply
    143,871.48x = 198,613.08 × 111,534.66
  4. Step 4: Simplify right side
    143,871.48x = 22,152,242,349.35
  5. Step 5: Solve for x
    x = 22,152,242,349.35/143,871.48
  6. Step 6: Final answer
    x = 153,972.44

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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.