Home / 105,519.60-145,630.91-60,187.17

Finding the Fourth Proportional to 105,519.60, 145,630.91 and 60,187.17

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Solution

The fourth proportional to 105,519.60, 145,630.91 and 60,187.17 is: 83,066.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,519.60 : 145,630.91 = 60,187.17 : x
  2. Step 2: Convert to fraction form
    105,519.60/145,630.91 = 60,187.17/x
  3. Step 3: Cross multiply
    105,519.60x = 145,630.91 × 60,187.17
  4. Step 4: Simplify right side
    105,519.60x = 8,765,112,036.49
  5. Step 5: Solve for x
    x = 8,765,112,036.49/105,519.60
  6. Step 6: Final answer
    x = 83,066.20

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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.