Home / 259,342.04-389,013.06-81,973.62

Finding the Fourth Proportional to 259,342.04, 389,013.06 and 81,973.62

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Solution

The fourth proportional to 259,342.04, 389,013.06 and 81,973.62 is: 122,960.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,342.04 : 389,013.06 = 81,973.62 : x
  2. Step 2: Convert to fraction form
    259,342.04/389,013.06 = 81,973.62/x
  3. Step 3: Cross multiply
    259,342.04x = 389,013.06 × 81,973.62
  4. Step 4: Simplify right side
    259,342.04x = 31,888,808,755.48
  5. Step 5: Solve for x
    x = 31,888,808,755.48/259,342.04
  6. Step 6: Final answer
    x = 122,960.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.