Home / 103,805.19-143,251.16-56,058.53

Finding the Fourth Proportional to 103,805.19, 143,251.16 and 56,058.53

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Solution

The fourth proportional to 103,805.19, 143,251.16 and 56,058.53 is: 77,360.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,805.19 : 143,251.16 = 56,058.53 : x
  2. Step 2: Convert to fraction form
    103,805.19/143,251.16 = 56,058.53/x
  3. Step 3: Cross multiply
    103,805.19x = 143,251.16 × 56,058.53
  4. Step 4: Simplify right side
    103,805.19x = 8,030,449,170.10
  5. Step 5: Solve for x
    x = 8,030,449,170.10/103,805.19
  6. Step 6: Final answer
    x = 77,360.77

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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.