Home / 109,660.82-151,338.93-61,896.74

Finding the Fourth Proportional to 109,660.82, 151,338.93 and 61,896.74

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Solution

The fourth proportional to 109,660.82, 151,338.93 and 61,896.74 is: 85,421.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,660.82 : 151,338.93 = 61,896.74 : x
  2. Step 2: Convert to fraction form
    109,660.82/151,338.93 = 61,896.74/x
  3. Step 3: Cross multiply
    109,660.82x = 151,338.93 × 61,896.74
  4. Step 4: Simplify right side
    109,660.82x = 9,367,386,402.09
  5. Step 5: Solve for x
    x = 9,367,386,402.09/109,660.82
  6. Step 6: Final answer
    x = 85,421.45

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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.