Home / 145,316.35-217,983.75-38,698.57

Finding the Fourth Proportional to 145,316.35, 217,983.75 and 38,698.57

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Solution

The fourth proportional to 145,316.35, 217,983.75 and 38,698.57 is: 58,050.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,316.35 : 217,983.75 = 38,698.57 : x
  2. Step 2: Convert to fraction form
    145,316.35/217,983.75 = 38,698.57/x
  3. Step 3: Cross multiply
    145,316.35x = 217,983.75 × 38,698.57
  4. Step 4: Simplify right side
    145,316.35x = 8,435,659,408.24
  5. Step 5: Solve for x
    x = 8,435,659,408.24/145,316.35
  6. Step 6: Final answer
    x = 58,050.31

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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.