Home / 78,772.32-117,697.23-76,016.16

Finding the Fourth Proportional to 78,772.32, 117,697.23 and 76,016.16

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Solution

The fourth proportional to 78,772.32, 117,697.23 and 76,016.16 is: 113,579.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,772.32 : 117,697.23 = 76,016.16 : x
  2. Step 2: Convert to fraction form
    78,772.32/117,697.23 = 76,016.16/x
  3. Step 3: Cross multiply
    78,772.32x = 117,697.23 × 76,016.16
  4. Step 4: Simplify right side
    78,772.32x = 8,946,891,467.24
  5. Step 5: Solve for x
    x = 8,946,891,467.24/78,772.32
  6. Step 6: Final answer
    x = 113,579.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.