Home / 105,066.10-145,003.44-58,503.70

Finding the Fourth Proportional to 105,066.10, 145,003.44 and 58,503.70

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Solution

The fourth proportional to 105,066.10, 145,003.44 and 58,503.70 is: 80,741.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,066.10 : 145,003.44 = 58,503.70 : x
  2. Step 2: Convert to fraction form
    105,066.10/145,003.44 = 58,503.70/x
  3. Step 3: Cross multiply
    105,066.10x = 145,003.44 × 58,503.70
  4. Step 4: Simplify right side
    105,066.10x = 8,483,237,752.73
  5. Step 5: Solve for x
    x = 8,483,237,752.73/105,066.10
  6. Step 6: Final answer
    x = 80,741.91

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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.