Home / 142,880.09-214,331.82-71,766.16

Finding the Fourth Proportional to 142,880.09, 214,331.82 and 71,766.16

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Solution

The fourth proportional to 142,880.09, 214,331.82 and 71,766.16 is: 107,655.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,880.09 : 214,331.82 = 71,766.16 : x
  2. Step 2: Convert to fraction form
    142,880.09/214,331.82 = 71,766.16/x
  3. Step 3: Cross multiply
    142,880.09x = 214,331.82 × 71,766.16
  4. Step 4: Simplify right side
    142,880.09x = 15,381,771,687.21
  5. Step 5: Solve for x
    x = 15,381,771,687.21/142,880.09
  6. Step 6: Final answer
    x = 107,655.11

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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.