Home / 152,356.55-228,447.32-81,191.57

Finding the Fourth Proportional to 152,356.55, 228,447.32 and 81,191.57

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Solution

The fourth proportional to 152,356.55, 228,447.32 and 81,191.57 is: 121,740.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,356.55 : 228,447.32 = 81,191.57 : x
  2. Step 2: Convert to fraction form
    152,356.55/228,447.32 = 81,191.57/x
  3. Step 3: Cross multiply
    152,356.55x = 228,447.32 × 81,191.57
  4. Step 4: Simplify right side
    152,356.55x = 18,547,995,024.90
  5. Step 5: Solve for x
    x = 18,547,995,024.90/152,356.55
  6. Step 6: Final answer
    x = 121,740.72

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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.