Home / 123,514.40-170,482.44-85,280.24

Finding the Fourth Proportional to 123,514.40, 170,482.44 and 85,280.24

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Solution

The fourth proportional to 123,514.40, 170,482.44 and 85,280.24 is: 117,709.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,514.40 : 170,482.44 = 85,280.24 : x
  2. Step 2: Convert to fraction form
    123,514.40/170,482.44 = 85,280.24/x
  3. Step 3: Cross multiply
    123,514.40x = 170,482.44 × 85,280.24
  4. Step 4: Simplify right side
    123,514.40x = 14,538,783,398.99
  5. Step 5: Solve for x
    x = 14,538,783,398.99/123,514.40
  6. Step 6: Final answer
    x = 117,709.22

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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.