Home / 97,115.10-145,666.65-40,931.10

Finding the Fourth Proportional to 97,115.10, 145,666.65 and 40,931.10

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Solution

The fourth proportional to 97,115.10, 145,666.65 and 40,931.10 is: 61,394.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,115.10 : 145,666.65 = 40,931.10 : x
  2. Step 2: Convert to fraction form
    97,115.10/145,666.65 = 40,931.10/x
  3. Step 3: Cross multiply
    97,115.10x = 145,666.65 × 40,931.10
  4. Step 4: Simplify right side
    97,115.10x = 5,962,296,217.82
  5. Step 5: Solve for x
    x = 5,962,296,217.82/97,115.10
  6. Step 6: Final answer
    x = 61,394.12

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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.