Home / 105,552.48-145,662.64-57,154.92

Finding the Fourth Proportional to 105,552.48, 145,662.64 and 57,154.92

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Solution

The fourth proportional to 105,552.48, 145,662.64 and 57,154.92 is: 78,873.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,552.48 : 145,662.64 = 57,154.92 : x
  2. Step 2: Convert to fraction form
    105,552.48/145,662.64 = 57,154.92/x
  3. Step 3: Cross multiply
    105,552.48x = 145,662.64 × 57,154.92
  4. Step 4: Simplify right side
    105,552.48x = 8,325,336,536.19
  5. Step 5: Solve for x
    x = 8,325,336,536.19/105,552.48
  6. Step 6: Final answer
    x = 78,873.91

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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.