Home / 131,386.54-181,313.64-74,797.92

Finding the Fourth Proportional to 131,386.54, 181,313.64 and 74,797.92

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Solution

The fourth proportional to 131,386.54, 181,313.64 and 74,797.92 is: 103,221.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,386.54 : 181,313.64 = 74,797.92 : x
  2. Step 2: Convert to fraction form
    131,386.54/181,313.64 = 74,797.92/x
  3. Step 3: Cross multiply
    131,386.54x = 181,313.64 × 74,797.92
  4. Step 4: Simplify right side
    131,386.54x = 13,561,883,139.63
  5. Step 5: Solve for x
    x = 13,561,883,139.63/131,386.54
  6. Step 6: Final answer
    x = 103,221.25

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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.