Home / 141,281.57-194,970.03-77,620.70

Finding the Fourth Proportional to 141,281.57, 194,970.03 and 77,620.70

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Solution

The fourth proportional to 141,281.57, 194,970.03 and 77,620.70 is: 107,117.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,281.57 : 194,970.03 = 77,620.70 : x
  2. Step 2: Convert to fraction form
    141,281.57/194,970.03 = 77,620.70/x
  3. Step 3: Cross multiply
    141,281.57x = 194,970.03 × 77,620.70
  4. Step 4: Simplify right side
    141,281.57x = 15,133,710,207.62
  5. Step 5: Solve for x
    x = 15,133,710,207.62/141,281.57
  6. Step 6: Final answer
    x = 107,117.37

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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.