Home / 102,399.32-141,311.70-57,080.18

Finding the Fourth Proportional to 102,399.32, 141,311.70 and 57,080.18

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Solution

The fourth proportional to 102,399.32, 141,311.70 and 57,080.18 is: 78,771.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,399.32 : 141,311.70 = 57,080.18 : x
  2. Step 2: Convert to fraction form
    102,399.32/141,311.70 = 57,080.18/x
  3. Step 3: Cross multiply
    102,399.32x = 141,311.70 × 57,080.18
  4. Step 4: Simplify right side
    102,399.32x = 8,066,097,625.39
  5. Step 5: Solve for x
    x = 8,066,097,625.39/102,399.32
  6. Step 6: Final answer
    x = 78,771.01

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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.