Home / 137,487.12-189,712.98-77,053.02

Finding the Fourth Proportional to 137,487.12, 189,712.98 and 77,053.02

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Solution

The fourth proportional to 137,487.12, 189,712.98 and 77,053.02 is: 106,322.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,487.12 : 189,712.98 = 77,053.02 : x
  2. Step 2: Convert to fraction form
    137,487.12/189,712.98 = 77,053.02/x
  3. Step 3: Cross multiply
    137,487.12x = 189,712.98 × 77,053.02
  4. Step 4: Simplify right side
    137,487.12x = 14,617,958,042.20
  5. Step 5: Solve for x
    x = 14,617,958,042.20/137,487.12
  6. Step 6: Final answer
    x = 106,322.38

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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.