Home / 128,677.09-193,016.95-33,920.88

Finding the Fourth Proportional to 128,677.09, 193,016.95 and 33,920.88

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Solution

The fourth proportional to 128,677.09, 193,016.95 and 33,920.88 is: 50,881.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,677.09 : 193,016.95 = 33,920.88 : x
  2. Step 2: Convert to fraction form
    128,677.09/193,016.95 = 33,920.88/x
  3. Step 3: Cross multiply
    128,677.09x = 193,016.95 × 33,920.88
  4. Step 4: Simplify right side
    128,677.09x = 6,547,304,085.70
  5. Step 5: Solve for x
    x = 6,547,304,085.70/128,677.09
  6. Step 6: Final answer
    x = 50,881.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.