Home / 103,340.13-154,989.75-28,440.93

Finding the Fourth Proportional to 103,340.13, 154,989.75 and 28,440.93

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Solution

The fourth proportional to 103,340.13, 154,989.75 and 28,440.93 is: 42,655.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,340.13 : 154,989.75 = 28,440.93 : x
  2. Step 2: Convert to fraction form
    103,340.13/154,989.75 = 28,440.93/x
  3. Step 3: Cross multiply
    103,340.13x = 154,989.75 × 28,440.93
  4. Step 4: Simplify right side
    103,340.13x = 4,408,052,630.47
  5. Step 5: Solve for x
    x = 4,408,052,630.47/103,340.13
  6. Step 6: Final answer
    x = 42,655.77

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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.