Home / 145,953.20-218,759.70-67,075.40

Finding the Fourth Proportional to 145,953.20, 218,759.70 and 67,075.40

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Solution

The fourth proportional to 145,953.20, 218,759.70 and 67,075.40 is: 100,534.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,953.20 : 218,759.70 = 67,075.40 : x
  2. Step 2: Convert to fraction form
    145,953.20/218,759.70 = 67,075.40/x
  3. Step 3: Cross multiply
    145,953.20x = 218,759.70 × 67,075.40
  4. Step 4: Simplify right side
    145,953.20x = 14,673,394,381.38
  5. Step 5: Solve for x
    x = 14,673,394,381.38/145,953.20
  6. Step 6: Final answer
    x = 100,534.93

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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.