Home / 152,720.91-228,989.28-68,465.82

Finding the Fourth Proportional to 152,720.91, 228,989.28 and 68,465.82

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Solution

The fourth proportional to 152,720.91, 228,989.28 and 68,465.82 is: 102,657.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,720.91 : 228,989.28 = 68,465.82 : x
  2. Step 2: Convert to fraction form
    152,720.91/228,989.28 = 68,465.82/x
  3. Step 3: Cross multiply
    152,720.91x = 228,989.28 × 68,465.82
  4. Step 4: Simplify right side
    152,720.91x = 15,677,938,826.41
  5. Step 5: Solve for x
    x = 15,677,938,826.41/152,720.91
  6. Step 6: Final answer
    x = 102,657.45

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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.