Home / 105,538.17-145,639.85-60,215.32

Finding the Fourth Proportional to 105,538.17, 145,639.85 and 60,215.32

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Solution

The fourth proportional to 105,538.17, 145,639.85 and 60,215.32 is: 83,095.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,538.17 : 145,639.85 = 60,215.32 : x
  2. Step 2: Convert to fraction form
    105,538.17/145,639.85 = 60,215.32/x
  3. Step 3: Cross multiply
    105,538.17x = 145,639.85 × 60,215.32
  4. Step 4: Simplify right side
    105,538.17x = 8,769,750,632.44
  5. Step 5: Solve for x
    x = 8,769,750,632.44/105,538.17
  6. Step 6: Final answer
    x = 83,095.54

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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.