Home / 117,657.13-162,368.09-63,942.15

Finding the Fourth Proportional to 117,657.13, 162,368.09 and 63,942.15

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Solution

The fourth proportional to 117,657.13, 162,368.09 and 63,942.15 is: 88,240.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,657.13 : 162,368.09 = 63,942.15 : x
  2. Step 2: Convert to fraction form
    117,657.13/162,368.09 = 63,942.15/x
  3. Step 3: Cross multiply
    117,657.13x = 162,368.09 × 63,942.15
  4. Step 4: Simplify right side
    117,657.13x = 10,382,164,765.99
  5. Step 5: Solve for x
    x = 10,382,164,765.99/117,657.13
  6. Step 6: Final answer
    x = 88,240.85

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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.