Home / 152,219.74-228,262.11-81,129.13

Finding the Fourth Proportional to 152,219.74, 228,262.11 and 81,129.13

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Solution

The fourth proportional to 152,219.74, 228,262.11 and 81,129.13 is: 121,657.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,219.74 : 228,262.11 = 81,129.13 : x
  2. Step 2: Convert to fraction form
    152,219.74/228,262.11 = 81,129.13/x
  3. Step 3: Cross multiply
    152,219.74x = 228,262.11 × 81,129.13
  4. Step 4: Simplify right side
    152,219.74x = 18,518,706,396.26
  5. Step 5: Solve for x
    x = 18,518,706,396.26/152,219.74
  6. Step 6: Final answer
    x = 121,657.72

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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.