Home / 143,822.01-198,468.95-83,395.20

Finding the Fourth Proportional to 143,822.01, 198,468.95 and 83,395.20

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Solution

The fourth proportional to 143,822.01, 198,468.95 and 83,395.20 is: 115,082.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,822.01 : 198,468.95 = 83,395.20 : x
  2. Step 2: Convert to fraction form
    143,822.01/198,468.95 = 83,395.20/x
  3. Step 3: Cross multiply
    143,822.01x = 198,468.95 × 83,395.20
  4. Step 4: Simplify right side
    143,822.01x = 16,551,357,362.06
  5. Step 5: Solve for x
    x = 16,551,357,362.06/143,822.01
  6. Step 6: Final answer
    x = 115,082.23

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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.