Home / 137,583.80-189,875.46-76,350.08

Finding the Fourth Proportional to 137,583.80, 189,875.46 and 76,350.08

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Solution

The fourth proportional to 137,583.80, 189,875.46 and 76,350.08 is: 105,368.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,583.80 : 189,875.46 = 76,350.08 : x
  2. Step 2: Convert to fraction form
    137,583.80/189,875.46 = 76,350.08/x
  3. Step 3: Cross multiply
    137,583.80x = 189,875.46 × 76,350.08
  4. Step 4: Simplify right side
    137,583.80x = 14,497,006,561.04
  5. Step 5: Solve for x
    x = 14,497,006,561.04/137,583.80
  6. Step 6: Final answer
    x = 105,368.56

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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.