Home / 105,513.15-145,612.08-60,198.51

Finding the Fourth Proportional to 105,513.15, 145,612.08 and 60,198.51

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Solution

The fourth proportional to 105,513.15, 145,612.08 and 60,198.51 is: 83,076.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,513.15 : 145,612.08 = 60,198.51 : x
  2. Step 2: Convert to fraction form
    105,513.15/145,612.08 = 60,198.51/x
  3. Step 3: Cross multiply
    105,513.15x = 145,612.08 × 60,198.51
  4. Step 4: Simplify right side
    105,513.15x = 8,765,630,254.00
  5. Step 5: Solve for x
    x = 8,765,630,254.00/105,513.15
  6. Step 6: Final answer
    x = 83,076.19

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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.