Home / 137,305.04-189,436.92-76,866.80

Finding the Fourth Proportional to 137,305.04, 189,436.92 and 76,866.80

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Solution

The fourth proportional to 137,305.04, 189,436.92 and 76,866.80 is: 106,051.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,305.04 : 189,436.92 = 76,866.80 : x
  2. Step 2: Convert to fraction form
    137,305.04/189,436.92 = 76,866.80/x
  3. Step 3: Cross multiply
    137,305.04x = 189,436.92 × 76,866.80
  4. Step 4: Simplify right side
    137,305.04x = 14,561,409,842.26
  5. Step 5: Solve for x
    x = 14,561,409,842.26/137,305.04
  6. Step 6: Final answer
    x = 106,051.53

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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.