Home / 137,333.23-189,504.20-76,895.47

Finding the Fourth Proportional to 137,333.23, 189,504.20 and 76,895.47

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Solution

The fourth proportional to 137,333.23, 189,504.20 and 76,895.47 is: 106,106.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,333.23 : 189,504.20 = 76,895.47 : x
  2. Step 2: Convert to fraction form
    137,333.23/189,504.20 = 76,895.47/x
  3. Step 3: Cross multiply
    137,333.23x = 189,504.20 × 76,895.47
  4. Step 4: Simplify right side
    137,333.23x = 14,572,014,141.50
  5. Step 5: Solve for x
    x = 14,572,014,141.50/137,333.23
  6. Step 6: Final answer
    x = 106,106.98

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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.