Home / 154,767.39-213,564.15-86,787.22

Finding the Fourth Proportional to 154,767.39, 213,564.15 and 86,787.22

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Solution

The fourth proportional to 154,767.39, 213,564.15 and 86,787.22 is: 119,758.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,767.39 : 213,564.15 = 86,787.22 : x
  2. Step 2: Convert to fraction form
    154,767.39/213,564.15 = 86,787.22/x
  3. Step 3: Cross multiply
    154,767.39x = 213,564.15 × 86,787.22
  4. Step 4: Simplify right side
    154,767.39x = 18,534,638,870.16
  5. Step 5: Solve for x
    x = 18,534,638,870.16/154,767.39
  6. Step 6: Final answer
    x = 119,758.04

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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.