Home / 137,041.07-189,119.31-76,616.08

Finding the Fourth Proportional to 137,041.07, 189,119.31 and 76,616.08

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Solution

The fourth proportional to 137,041.07, 189,119.31 and 76,616.08 is: 105,731.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,041.07 : 189,119.31 = 76,616.08 : x
  2. Step 2: Convert to fraction form
    137,041.07/189,119.31 = 76,616.08/x
  3. Step 3: Cross multiply
    137,041.07x = 189,119.31 × 76,616.08
  4. Step 4: Simplify right side
    137,041.07x = 14,489,579,424.40
  5. Step 5: Solve for x
    x = 14,489,579,424.40/137,041.07
  6. Step 6: Final answer
    x = 105,731.66

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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.