Home / 117,008.50-161,406.12-71,708.44

Finding the Fourth Proportional to 117,008.50, 161,406.12 and 71,708.44

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Solution

The fourth proportional to 117,008.50, 161,406.12 and 71,708.44 is: 98,917.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,008.50 : 161,406.12 = 71,708.44 : x
  2. Step 2: Convert to fraction form
    117,008.50/161,406.12 = 71,708.44/x
  3. Step 3: Cross multiply
    117,008.50x = 161,406.12 × 71,708.44
  4. Step 4: Simplify right side
    117,008.50x = 11,574,181,071.65
  5. Step 5: Solve for x
    x = 11,574,181,071.65/117,008.50
  6. Step 6: Final answer
    x = 98,917.44

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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.