Home / 154,257.96-212,866.24-86,281.16

Finding the Fourth Proportional to 154,257.96, 212,866.24 and 86,281.16

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Solution

The fourth proportional to 154,257.96, 212,866.24 and 86,281.16 is: 119,062.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,257.96 : 212,866.24 = 86,281.16 : x
  2. Step 2: Convert to fraction form
    154,257.96/212,866.24 = 86,281.16/x
  3. Step 3: Cross multiply
    154,257.96x = 212,866.24 × 86,281.16
  4. Step 4: Simplify right side
    154,257.96x = 18,366,346,112.04
  5. Step 5: Solve for x
    x = 18,366,346,112.04/154,257.96
  6. Step 6: Final answer
    x = 119,062.55

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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.