Home / 154,382.19-213,051.23-86,398.62

Finding the Fourth Proportional to 154,382.19, 213,051.23 and 86,398.62

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Solution

The fourth proportional to 154,382.19, 213,051.23 and 86,398.62 is: 119,232.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,382.19 : 213,051.23 = 86,398.62 : x
  2. Step 2: Convert to fraction form
    154,382.19/213,051.23 = 86,398.62/x
  3. Step 3: Cross multiply
    154,382.19x = 213,051.23 × 86,398.62
  4. Step 4: Simplify right side
    154,382.19x = 18,407,332,261.30
  5. Step 5: Solve for x
    x = 18,407,332,261.30/154,382.19
  6. Step 6: Final answer
    x = 119,232.23

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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.