Home / 158,090.26-218,164.80-86,470.06

Finding the Fourth Proportional to 158,090.26, 218,164.80 and 86,470.06

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Solution

The fourth proportional to 158,090.26, 218,164.80 and 86,470.06 is: 119,328.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,090.26 : 218,164.80 = 86,470.06 : x
  2. Step 2: Convert to fraction form
    158,090.26/218,164.80 = 86,470.06/x
  3. Step 3: Cross multiply
    158,090.26x = 218,164.80 × 86,470.06
  4. Step 4: Simplify right side
    158,090.26x = 18,864,723,345.89
  5. Step 5: Solve for x
    x = 18,864,723,345.89/158,090.26
  6. Step 6: Final answer
    x = 119,328.81

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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.