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Finding the Fourth Proportional to 152,647.60, 210,659.16 and 88,975.12

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Solution

The fourth proportional to 152,647.60, 210,659.16 and 88,975.12 is: 122,788.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,647.60 : 210,659.16 = 88,975.12 : x
  2. Step 2: Convert to fraction form
    152,647.60/210,659.16 = 88,975.12/x
  3. Step 3: Cross multiply
    152,647.60x = 210,659.16 × 88,975.12
  4. Step 4: Simplify right side
    152,647.60x = 18,743,424,040.10
  5. Step 5: Solve for x
    x = 18,743,424,040.10/152,647.60
  6. Step 6: Final answer
    x = 122,788.86

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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.