Home / 148,890.02-223,151.81-81,259.74

Finding the Fourth Proportional to 148,890.02, 223,151.81 and 81,259.74

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Solution

The fourth proportional to 148,890.02, 223,151.81 and 81,259.74 is: 121,789.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,890.02 : 223,151.81 = 81,259.74 : x
  2. Step 2: Convert to fraction form
    148,890.02/223,151.81 = 81,259.74/x
  3. Step 3: Cross multiply
    148,890.02x = 223,151.81 × 81,259.74
  4. Step 4: Simplify right side
    148,890.02x = 18,133,257,654.83
  5. Step 5: Solve for x
    x = 18,133,257,654.83/148,890.02
  6. Step 6: Final answer
    x = 121,789.62

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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.