Home / 154,776.58-213,588.34-86,792.06

Finding the Fourth Proportional to 154,776.58, 213,588.34 and 86,792.06

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Solution

The fourth proportional to 154,776.58, 213,588.34 and 86,792.06 is: 119,771.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,776.58 : 213,588.34 = 86,792.06 : x
  2. Step 2: Convert to fraction form
    154,776.58/213,588.34 = 86,792.06/x
  3. Step 3: Cross multiply
    154,776.58x = 213,588.34 × 86,792.06
  4. Step 4: Simplify right side
    154,776.58x = 18,537,771,624.34
  5. Step 5: Solve for x
    x = 18,537,771,624.34/154,776.58
  6. Step 6: Final answer
    x = 119,771.17

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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.