Home / 117,438.96-162,094.56-72,127.80

Finding the Fourth Proportional to 117,438.96, 162,094.56 and 72,127.80

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Solution

The fourth proportional to 117,438.96, 162,094.56 and 72,127.80 is: 99,554.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,438.96 : 162,094.56 = 72,127.80 : x
  2. Step 2: Convert to fraction form
    117,438.96/162,094.56 = 72,127.80/x
  3. Step 3: Cross multiply
    117,438.96x = 162,094.56 × 72,127.80
  4. Step 4: Simplify right side
    117,438.96x = 11,691,524,004.77
  5. Step 5: Solve for x
    x = 11,691,524,004.77/117,438.96
  6. Step 6: Final answer
    x = 99,554.05

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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.