Home / 143,587.92-198,137.02-83,177.98

Finding the Fourth Proportional to 143,587.92, 198,137.02 and 83,177.98

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Solution

The fourth proportional to 143,587.92, 198,137.02 and 83,177.98 is: 114,777.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,587.92 : 198,137.02 = 83,177.98 : x
  2. Step 2: Convert to fraction form
    143,587.92/198,137.02 = 83,177.98/x
  3. Step 3: Cross multiply
    143,587.92x = 198,137.02 × 83,177.98
  4. Step 4: Simplify right side
    143,587.92x = 16,480,637,086.82
  5. Step 5: Solve for x
    x = 16,480,637,086.82/143,587.92
  6. Step 6: Final answer
    x = 114,777.32

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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.