Home / 150,115.08-207,210.90-86,478.24

Finding the Fourth Proportional to 150,115.08, 207,210.90 and 86,478.24

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Solution

The fourth proportional to 150,115.08, 207,210.90 and 86,478.24 is: 119,369.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,115.08 : 207,210.90 = 86,478.24 : x
  2. Step 2: Convert to fraction form
    150,115.08/207,210.90 = 86,478.24/x
  3. Step 3: Cross multiply
    150,115.08x = 207,210.90 × 86,478.24
  4. Step 4: Simplify right side
    150,115.08x = 17,919,233,940.82
  5. Step 5: Solve for x
    x = 17,919,233,940.82/150,115.08
  6. Step 6: Final answer
    x = 119,369.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.