Home / 158,341.37-218,502.90-86,707.56

Finding the Fourth Proportional to 158,341.37, 218,502.90 and 86,707.56

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Solution

The fourth proportional to 158,341.37, 218,502.90 and 86,707.56 is: 119,651.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,341.37 : 218,502.90 = 86,707.56 : x
  2. Step 2: Convert to fraction form
    158,341.37/218,502.90 = 86,707.56/x
  3. Step 3: Cross multiply
    158,341.37x = 218,502.90 × 86,707.56
  4. Step 4: Simplify right side
    158,341.37x = 18,945,854,131.31
  5. Step 5: Solve for x
    x = 18,945,854,131.31/158,341.37
  6. Step 6: Final answer
    x = 119,651.96

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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.