Home / 109,729.95-151,436.66-61,992.06

Finding the Fourth Proportional to 109,729.95, 151,436.66 and 61,992.06

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Solution

The fourth proportional to 109,729.95, 151,436.66 and 61,992.06 is: 85,554.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,729.95 : 151,436.66 = 61,992.06 : x
  2. Step 2: Convert to fraction form
    109,729.95/151,436.66 = 61,992.06/x
  3. Step 3: Cross multiply
    109,729.95x = 151,436.66 × 61,992.06
  4. Step 4: Simplify right side
    109,729.95x = 9,387,870,202.96
  5. Step 5: Solve for x
    x = 9,387,870,202.96/109,729.95
  6. Step 6: Final answer
    x = 85,554.31

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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.