Home / 97,145.43-145,780.16-47,198.30

Finding the Fourth Proportional to 97,145.43, 145,780.16 and 47,198.30

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Solution

The fourth proportional to 97,145.43, 145,780.16 and 47,198.30 is: 70,827.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,145.43 : 145,780.16 = 47,198.30 : x
  2. Step 2: Convert to fraction form
    97,145.43/145,780.16 = 47,198.30/x
  3. Step 3: Cross multiply
    97,145.43x = 145,780.16 × 47,198.30
  4. Step 4: Simplify right side
    97,145.43x = 6,880,574,760.84
  5. Step 5: Solve for x
    x = 6,880,574,760.84/97,145.43
  6. Step 6: Final answer
    x = 70,827.57

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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.