Home / 105,319.97-145,331.28-59,994.39

Finding the Fourth Proportional to 105,319.97, 145,331.28 and 59,994.39

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Solution

The fourth proportional to 105,319.97, 145,331.28 and 59,994.39 is: 82,786.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,319.97 : 145,331.28 = 59,994.39 : x
  2. Step 2: Convert to fraction form
    105,319.97/145,331.28 = 59,994.39/x
  3. Step 3: Cross multiply
    105,319.97x = 145,331.28 × 59,994.39
  4. Step 4: Simplify right side
    105,319.97x = 8,719,061,491.52
  5. Step 5: Solve for x
    x = 8,719,061,491.52/105,319.97
  6. Step 6: Final answer
    x = 82,786.40

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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.