Home / 143,856.06-198,392.67-90,146.94

Finding the Fourth Proportional to 143,856.06, 198,392.67 and 90,146.94

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Solution

The fourth proportional to 143,856.06, 198,392.67 and 90,146.94 is: 124,322.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,856.06 : 198,392.67 = 90,146.94 : x
  2. Step 2: Convert to fraction form
    143,856.06/198,392.67 = 90,146.94/x
  3. Step 3: Cross multiply
    143,856.06x = 198,392.67 × 90,146.94
  4. Step 4: Simplify right side
    143,856.06x = 17,884,492,118.93
  5. Step 5: Solve for x
    x = 17,884,492,118.93/143,856.06
  6. Step 6: Final answer
    x = 124,322.13

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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.