Home / 137,000.08-189,054.16-74,909.43

Finding the Fourth Proportional to 137,000.08, 189,054.16 and 74,909.43

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Solution

The fourth proportional to 137,000.08, 189,054.16 and 74,909.43 is: 103,371.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,000.08 : 189,054.16 = 74,909.43 : x
  2. Step 2: Convert to fraction form
    137,000.08/189,054.16 = 74,909.43/x
  3. Step 3: Cross multiply
    137,000.08x = 189,054.16 × 74,909.43
  4. Step 4: Simplify right side
    137,000.08x = 14,161,939,122.28
  5. Step 5: Solve for x
    x = 14,161,939,122.28/137,000.08
  6. Step 6: Final answer
    x = 103,371.76

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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.