Home / 169,721.67-234,216-93,245.70

Finding the Fourth Proportional to 169,721.67, 234,216 and 93,245.70

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Solution

The fourth proportional to 169,721.67, 234,216 and 93,245.70 is: 128,679.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,721.67 : 234,216 = 93,245.70 : x
  2. Step 2: Convert to fraction form
    169,721.67/234,216 = 93,245.70/x
  3. Step 3: Cross multiply
    169,721.67x = 234,216 × 93,245.70
  4. Step 4: Simplify right side
    169,721.67x = 21,839,634,871.20
  5. Step 5: Solve for x
    x = 21,839,634,871.20/169,721.67
  6. Step 6: Final answer
    x = 128,679.12

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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.