Home / 123,430.23-185,143.97-39,188.14

Finding the Fourth Proportional to 123,430.23, 185,143.97 and 39,188.14

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Solution

The fourth proportional to 123,430.23, 185,143.97 and 39,188.14 is: 58,781.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,430.23 : 185,143.97 = 39,188.14 : x
  2. Step 2: Convert to fraction form
    123,430.23/185,143.97 = 39,188.14/x
  3. Step 3: Cross multiply
    123,430.23x = 185,143.97 × 39,188.14
  4. Step 4: Simplify right side
    123,430.23x = 7,255,447,451.63
  5. Step 5: Solve for x
    x = 7,255,447,451.63/123,430.23
  6. Step 6: Final answer
    x = 58,781.77

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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.