Home / 105,513.76-145,622.86-60,181.36

Finding the Fourth Proportional to 105,513.76, 145,622.86 and 60,181.36

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Solution

The fourth proportional to 105,513.76, 145,622.86 and 60,181.36 is: 83,058.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,513.76 : 145,622.86 = 60,181.36 : x
  2. Step 2: Convert to fraction form
    105,513.76/145,622.86 = 60,181.36/x
  3. Step 3: Cross multiply
    105,513.76x = 145,622.86 × 60,181.36
  4. Step 4: Simplify right side
    105,513.76x = 8,763,781,247.38
  5. Step 5: Solve for x
    x = 8,763,781,247.38/105,513.76
  6. Step 6: Final answer
    x = 83,058.18

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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.