Home / 117,479.43-162,206.96-72,219.06

Finding the Fourth Proportional to 117,479.43, 162,206.96 and 72,219.06

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Solution

The fourth proportional to 117,479.43, 162,206.96 and 72,219.06 is: 99,714.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,479.43 : 162,206.96 = 72,219.06 : x
  2. Step 2: Convert to fraction form
    117,479.43/162,206.96 = 72,219.06/x
  3. Step 3: Cross multiply
    117,479.43x = 162,206.96 × 72,219.06
  4. Step 4: Simplify right side
    117,479.43x = 11,714,433,815.56
  5. Step 5: Solve for x
    x = 11,714,433,815.56/117,479.43
  6. Step 6: Final answer
    x = 99,714.77

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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.