Home / 152,372.40-210,273.72-85,304.88

Finding the Fourth Proportional to 152,372.40, 210,273.72 and 85,304.88

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Solution

The fourth proportional to 152,372.40, 210,273.72 and 85,304.88 is: 117,720.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,372.40 : 210,273.72 = 85,304.88 : x
  2. Step 2: Convert to fraction form
    152,372.40/210,273.72 = 85,304.88/x
  3. Step 3: Cross multiply
    152,372.40x = 210,273.72 × 85,304.88
  4. Step 4: Simplify right side
    152,372.40x = 17,937,374,451.75
  5. Step 5: Solve for x
    x = 17,937,374,451.75/152,372.40
  6. Step 6: Final answer
    x = 117,720.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.