Home / 213,756.15-294,957.56-123,141.45

Finding the Fourth Proportional to 213,756.15, 294,957.56 and 123,141.45

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Solution

The fourth proportional to 213,756.15, 294,957.56 and 123,141.45 is: 169,920.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,756.15 : 294,957.56 = 123,141.45 : x
  2. Step 2: Convert to fraction form
    213,756.15/294,957.56 = 123,141.45/x
  3. Step 3: Cross multiply
    213,756.15x = 294,957.56 × 123,141.45
  4. Step 4: Simplify right side
    213,756.15x = 36,321,501,011.15
  5. Step 5: Solve for x
    x = 36,321,501,011.15/213,756.15
  6. Step 6: Final answer
    x = 169,920.26

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1.5x scale

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.