Home / 189,711.24-261,798.28-103,668.31

Finding the Fourth Proportional to 189,711.24, 261,798.28 and 103,668.31

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Solution

The fourth proportional to 189,711.24, 261,798.28 and 103,668.31 is: 143,060.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,711.24 : 261,798.28 = 103,668.31 : x
  2. Step 2: Convert to fraction form
    189,711.24/261,798.28 = 103,668.31/x
  3. Step 3: Cross multiply
    189,711.24x = 261,798.28 × 103,668.31
  4. Step 4: Simplify right side
    189,711.24x = 27,140,185,248.51
  5. Step 5: Solve for x
    x = 27,140,185,248.51/189,711.24
  6. Step 6: Final answer
    x = 143,060.50

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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.