Home / 138,148.08-207,222.12-49,396.20

Finding the Fourth Proportional to 138,148.08, 207,222.12 and 49,396.20

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Solution

The fourth proportional to 138,148.08, 207,222.12 and 49,396.20 is: 74,094.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,148.08 : 207,222.12 = 49,396.20 : x
  2. Step 2: Convert to fraction form
    138,148.08/207,222.12 = 49,396.20/x
  3. Step 3: Cross multiply
    138,148.08x = 207,222.12 × 49,396.20
  4. Step 4: Simplify right side
    138,148.08x = 10,235,985,283.94
  5. Step 5: Solve for x
    x = 10,235,985,283.94/138,148.08
  6. Step 6: Final answer
    x = 74,094.30

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1.5x scale

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.