Home / 141,280.64-194,970.04-77,620.84

Finding the Fourth Proportional to 141,280.64, 194,970.04 and 77,620.84

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Solution

The fourth proportional to 141,280.64, 194,970.04 and 77,620.84 is: 107,118.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,280.64 : 194,970.04 = 77,620.84 : x
  2. Step 2: Convert to fraction form
    141,280.64/194,970.04 = 77,620.84/x
  3. Step 3: Cross multiply
    141,280.64x = 194,970.04 × 77,620.84
  4. Step 4: Simplify right side
    141,280.64x = 15,133,738,279.63
  5. Step 5: Solve for x
    x = 15,133,738,279.63/141,280.64
  6. Step 6: Final answer
    x = 107,118.27

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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.