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Finding the Fourth Proportional to 145,952.20, 218,758.20 and 67,074.40

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Solution

The fourth proportional to 145,952.20, 218,758.20 and 67,074.40 is: 100,533.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,952.20 : 218,758.20 = 67,074.40 : x
  2. Step 2: Convert to fraction form
    145,952.20/218,758.20 = 67,074.40/x
  3. Step 3: Cross multiply
    145,952.20x = 218,758.20 × 67,074.40
  4. Step 4: Simplify right side
    145,952.20x = 14,673,075,010.08
  5. Step 5: Solve for x
    x = 14,673,075,010.08/145,952.20
  6. Step 6: Final answer
    x = 100,533.43

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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.