Home / 142,448.40-196,546.32-85,061.52

Finding the Fourth Proportional to 142,448.40, 196,546.32 and 85,061.52

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Solution

The fourth proportional to 142,448.40, 196,546.32 and 85,061.52 is: 117,365.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,448.40 : 196,546.32 = 85,061.52 : x
  2. Step 2: Convert to fraction form
    142,448.40/196,546.32 = 85,061.52/x
  3. Step 3: Cross multiply
    142,448.40x = 196,546.32 × 85,061.52
  4. Step 4: Simplify right side
    142,448.40x = 16,718,528,729.61
  5. Step 5: Solve for x
    x = 16,718,528,729.61/142,448.40
  6. Step 6: Final answer
    x = 117,365.51

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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.