Home / 105,406.57-145,464.51-60,083.72

Finding the Fourth Proportional to 105,406.57, 145,464.51 and 60,083.72

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Solution

The fourth proportional to 105,406.57, 145,464.51 and 60,083.72 is: 82,917.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,406.57 : 145,464.51 = 60,083.72 : x
  2. Step 2: Convert to fraction form
    105,406.57/145,464.51 = 60,083.72/x
  3. Step 3: Cross multiply
    105,406.57x = 145,464.51 × 60,083.72
  4. Step 4: Simplify right side
    105,406.57x = 8,740,049,412.53
  5. Step 5: Solve for x
    x = 8,740,049,412.53/105,406.57
  6. Step 6: Final answer
    x = 82,917.50

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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.