Home / 117,764.32-162,333.82-72,357.36

Finding the Fourth Proportional to 117,764.32, 162,333.82 and 72,357.36

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Solution

The fourth proportional to 117,764.32, 162,333.82 and 72,357.36 is: 99,741.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,764.32 : 162,333.82 = 72,357.36 : x
  2. Step 2: Convert to fraction form
    117,764.32/162,333.82 = 72,357.36/x
  3. Step 3: Cross multiply
    117,764.32x = 162,333.82 × 72,357.36
  4. Step 4: Simplify right side
    117,764.32x = 11,746,046,653.92
  5. Step 5: Solve for x
    x = 11,746,046,653.92/117,764.32
  6. Step 6: Final answer
    x = 99,741.98

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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.