Home / 141,378.64-195,097.57-77,715.98

Finding the Fourth Proportional to 141,378.64, 195,097.57 and 77,715.98

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Solution

The fourth proportional to 141,378.64, 195,097.57 and 77,715.98 is: 107,245.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,378.64 : 195,097.57 = 77,715.98 : x
  2. Step 2: Convert to fraction form
    141,378.64/195,097.57 = 77,715.98/x
  3. Step 3: Cross multiply
    141,378.64x = 195,097.57 × 77,715.98
  4. Step 4: Simplify right side
    141,378.64x = 15,162,197,678.39
  5. Step 5: Solve for x
    x = 15,162,197,678.39/141,378.64
  6. Step 6: Final answer
    x = 107,245.32

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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.