Home / 158,341.14-218,502.61-86,707.30

Finding the Fourth Proportional to 158,341.14, 218,502.61 and 86,707.30

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Solution

The fourth proportional to 158,341.14, 218,502.61 and 86,707.30 is: 119,651.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,341.14 : 218,502.61 = 86,707.30 : x
  2. Step 2: Convert to fraction form
    158,341.14/218,502.61 = 86,707.30/x
  3. Step 3: Cross multiply
    158,341.14x = 218,502.61 × 86,707.30
  4. Step 4: Simplify right side
    158,341.14x = 18,945,771,356.05
  5. Step 5: Solve for x
    x = 18,945,771,356.05/158,341.14
  6. Step 6: Final answer
    x = 119,651.60

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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.