Home / 145,289.32-217,946.52-40,108.30

Finding the Fourth Proportional to 145,289.32, 217,946.52 and 40,108.30

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Solution

The fourth proportional to 145,289.32, 217,946.52 and 40,108.30 is: 60,165.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,289.32 : 217,946.52 = 40,108.30 : x
  2. Step 2: Convert to fraction form
    145,289.32/217,946.52 = 40,108.30/x
  3. Step 3: Cross multiply
    145,289.32x = 217,946.52 × 40,108.30
  4. Step 4: Simplify right side
    145,289.32x = 8,741,464,408.12
  5. Step 5: Solve for x
    x = 8,741,464,408.12/145,289.32
  6. Step 6: Final answer
    x = 60,165.91

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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.