Home / 163,338.66-245,182.95-128,521.62

Finding the Fourth Proportional to 163,338.66, 245,182.95 and 128,521.62

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Solution

The fourth proportional to 163,338.66, 245,182.95 and 128,521.62 is: 192,920.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,338.66 : 245,182.95 = 128,521.62 : x
  2. Step 2: Convert to fraction form
    163,338.66/245,182.95 = 128,521.62/x
  3. Step 3: Cross multiply
    163,338.66x = 245,182.95 × 128,521.62
  4. Step 4: Simplify right side
    163,338.66x = 31,511,309,930.38
  5. Step 5: Solve for x
    x = 31,511,309,930.38/163,338.66
  6. Step 6: Final answer
    x = 192,920.10

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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.