Home / 149,903.86-206,875.34-86,251.36

Finding the Fourth Proportional to 149,903.86, 206,875.34 and 86,251.36

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Solution

The fourth proportional to 149,903.86, 206,875.34 and 86,251.36 is: 119,031.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,903.86 : 206,875.34 = 86,251.36 : x
  2. Step 2: Convert to fraction form
    149,903.86/206,875.34 = 86,251.36/x
  3. Step 3: Cross multiply
    149,903.86x = 206,875.34 × 86,251.36
  4. Step 4: Simplify right side
    149,903.86x = 17,843,279,425.46
  5. Step 5: Solve for x
    x = 17,843,279,425.46/149,903.86
  6. Step 6: Final answer
    x = 119,031.49

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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.