Home / 97,121.85-145,644.48-47,187.15

Finding the Fourth Proportional to 97,121.85, 145,644.48 and 47,187.15

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Solution

The fourth proportional to 97,121.85, 145,644.48 and 47,187.15 is: 70,762.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,121.85 : 145,644.48 = 47,187.15 : x
  2. Step 2: Convert to fraction form
    97,121.85/145,644.48 = 47,187.15/x
  3. Step 3: Cross multiply
    97,121.85x = 145,644.48 × 47,187.15
  4. Step 4: Simplify right side
    97,121.85x = 6,872,547,924.43
  5. Step 5: Solve for x
    x = 6,872,547,924.43/97,121.85
  6. Step 6: Final answer
    x = 70,762.12

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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.