Home / 100,773.12-139,058.32-58,334.24

Finding the Fourth Proportional to 100,773.12, 139,058.32 and 58,334.24

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Solution

The fourth proportional to 100,773.12, 139,058.32 and 58,334.24 is: 80,496.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,773.12 : 139,058.32 = 58,334.24 : x
  2. Step 2: Convert to fraction form
    100,773.12/139,058.32 = 58,334.24/x
  3. Step 3: Cross multiply
    100,773.12x = 139,058.32 × 58,334.24
  4. Step 4: Simplify right side
    100,773.12x = 8,111,861,412.88
  5. Step 5: Solve for x
    x = 8,111,861,412.88/100,773.12
  6. Step 6: Final answer
    x = 80,496.28

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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.