Home / 117,987.48-162,808.70-66,999.83

Finding the Fourth Proportional to 117,987.48, 162,808.70 and 66,999.83

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Solution

The fourth proportional to 117,987.48, 162,808.70 and 66,999.83 is: 92,451.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,987.48 : 162,808.70 = 66,999.83 : x
  2. Step 2: Convert to fraction form
    117,987.48/162,808.70 = 66,999.83/x
  3. Step 3: Cross multiply
    117,987.48x = 162,808.70 × 66,999.83
  4. Step 4: Simplify right side
    117,987.48x = 10,908,154,073.48
  5. Step 5: Solve for x
    x = 10,908,154,073.48/117,987.48
  6. Step 6: Final answer
    x = 92,451.79

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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.