Home / 105,204.96-145,177.38-57,448.98

Finding the Fourth Proportional to 105,204.96, 145,177.38 and 57,448.98

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Solution

The fourth proportional to 105,204.96, 145,177.38 and 57,448.98 is: 79,276.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,204.96 : 145,177.38 = 57,448.98 : x
  2. Step 2: Convert to fraction form
    105,204.96/145,177.38 = 57,448.98/x
  3. Step 3: Cross multiply
    105,204.96x = 145,177.38 × 57,448.98
  4. Step 4: Simplify right side
    105,204.96x = 8,340,292,400.07
  5. Step 5: Solve for x
    x = 8,340,292,400.07/105,204.96
  6. Step 6: Final answer
    x = 79,276.61

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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.