Home / 142,604.87-214,117.56-79,548.21

Finding the Fourth Proportional to 142,604.87, 214,117.56 and 79,548.21

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Solution

The fourth proportional to 142,604.87, 214,117.56 and 79,548.21 is: 119,439.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,604.87 : 214,117.56 = 79,548.21 : x
  2. Step 2: Convert to fraction form
    142,604.87/214,117.56 = 79,548.21/x
  3. Step 3: Cross multiply
    142,604.87x = 214,117.56 × 79,548.21
  4. Step 4: Simplify right side
    142,604.87x = 17,032,668,627.57
  5. Step 5: Solve for x
    x = 17,032,668,627.57/142,604.87
  6. Step 6: Final answer
    x = 119,439.60

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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.