Home / 158,090.02-218,162.64-86,471.44

Finding the Fourth Proportional to 158,090.02, 218,162.64 and 86,471.44

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Solution

The fourth proportional to 158,090.02, 218,162.64 and 86,471.44 is: 119,329.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,090.02 : 218,162.64 = 86,471.44 : x
  2. Step 2: Convert to fraction form
    158,090.02/218,162.64 = 86,471.44/x
  3. Step 3: Cross multiply
    158,090.02x = 218,162.64 × 86,471.44
  4. Step 4: Simplify right side
    158,090.02x = 18,864,837,635.00
  5. Step 5: Solve for x
    x = 18,864,837,635.00/158,090.02
  6. Step 6: Final answer
    x = 119,329.72

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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.