Home / 143,718.84-198,332.28-83,301.12

Finding the Fourth Proportional to 143,718.84, 198,332.28 and 83,301.12

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Solution

The fourth proportional to 143,718.84, 198,332.28 and 83,301.12 is: 114,955.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,718.84 : 198,332.28 = 83,301.12 : x
  2. Step 2: Convert to fraction form
    143,718.84/198,332.28 = 83,301.12/x
  3. Step 3: Cross multiply
    143,718.84x = 198,332.28 × 83,301.12
  4. Step 4: Simplify right side
    143,718.84x = 16,521,301,056.15
  5. Step 5: Solve for x
    x = 16,521,301,056.15/143,718.84
  6. Step 6: Final answer
    x = 114,955.71

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1.5x scale

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.