Home / 109,902.09-151,673.04-61,508.88

Finding the Fourth Proportional to 109,902.09, 151,673.04 and 61,508.88

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Solution

The fourth proportional to 109,902.09, 151,673.04 and 61,508.88 is: 84,886.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,902.09 : 151,673.04 = 61,508.88 : x
  2. Step 2: Convert to fraction form
    109,902.09/151,673.04 = 61,508.88/x
  3. Step 3: Cross multiply
    109,902.09x = 151,673.04 × 61,508.88
  4. Step 4: Simplify right side
    109,902.09x = 9,329,238,816.60
  5. Step 5: Solve for x
    x = 9,329,238,816.60/109,902.09
  6. Step 6: Final answer
    x = 84,886.82

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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.