Home / 117,011.50-161,410.26-71,711.44

Finding the Fourth Proportional to 117,011.50, 161,410.26 and 71,711.44

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Solution

The fourth proportional to 117,011.50, 161,410.26 and 71,711.44 is: 98,921.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,011.50 : 161,410.26 = 71,711.44 : x
  2. Step 2: Convert to fraction form
    117,011.50/161,410.26 = 71,711.44/x
  3. Step 3: Cross multiply
    117,011.50x = 161,410.26 × 71,711.44
  4. Step 4: Simplify right side
    117,011.50x = 11,574,962,175.37
  5. Step 5: Solve for x
    x = 11,574,962,175.37/117,011.50
  6. Step 6: Final answer
    x = 98,921.58

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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.