Home / 142,274.16-213,241.68-66,270.72

Finding the Fourth Proportional to 142,274.16, 213,241.68 and 66,270.72

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Solution

The fourth proportional to 142,274.16, 213,241.68 and 66,270.72 is: 99,327.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,274.16 : 213,241.68 = 66,270.72 : x
  2. Step 2: Convert to fraction form
    142,274.16/213,241.68 = 66,270.72/x
  3. Step 3: Cross multiply
    142,274.16x = 213,241.68 × 66,270.72
  4. Step 4: Simplify right side
    142,274.16x = 14,131,679,667.61
  5. Step 5: Solve for x
    x = 14,131,679,667.61/142,274.16
  6. Step 6: Final answer
    x = 99,327.10

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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.