Home / 145,972.20-218,907.10-75,828.20

Finding the Fourth Proportional to 145,972.20, 218,907.10 and 75,828.20

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Solution

The fourth proportional to 145,972.20, 218,907.10 and 75,828.20 is: 113,715.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,972.20 : 218,907.10 = 75,828.20 : x
  2. Step 2: Convert to fraction form
    145,972.20/218,907.10 = 75,828.20/x
  3. Step 3: Cross multiply
    145,972.20x = 218,907.10 × 75,828.20
  4. Step 4: Simplify right side
    145,972.20x = 16,599,331,360.22
  5. Step 5: Solve for x
    x = 16,599,331,360.22/145,972.20
  6. Step 6: Final answer
    x = 113,715.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.