Home / 159,946.90-239,777.76-81,020.50

Finding the Fourth Proportional to 159,946.90, 239,777.76 and 81,020.50

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Solution

The fourth proportional to 159,946.90, 239,777.76 and 81,020.50 is: 121,458.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,946.90 : 239,777.76 = 81,020.50 : x
  2. Step 2: Convert to fraction form
    159,946.90/239,777.76 = 81,020.50/x
  3. Step 3: Cross multiply
    159,946.90x = 239,777.76 × 81,020.50
  4. Step 4: Simplify right side
    159,946.90x = 19,426,914,004.08
  5. Step 5: Solve for x
    x = 19,426,914,004.08/159,946.90
  6. Step 6: Final answer
    x = 121,458.52

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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.