Home / 106,816.73-159,528.29-90,851.63

Finding the Fourth Proportional to 106,816.73, 159,528.29 and 90,851.63

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Solution

The fourth proportional to 106,816.73, 159,528.29 and 90,851.63 is: 135,684.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,816.73 : 159,528.29 = 90,851.63 : x
  2. Step 2: Convert to fraction form
    106,816.73/159,528.29 = 90,851.63/x
  3. Step 3: Cross multiply
    106,816.73x = 159,528.29 × 90,851.63
  4. Step 4: Simplify right side
    106,816.73x = 14,493,403,925.71
  5. Step 5: Solve for x
    x = 14,493,403,925.71/106,816.73
  6. Step 6: Final answer
    x = 135,684.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.