Home / 161,947.30-243,030.30-90,869.80

Finding the Fourth Proportional to 161,947.30, 243,030.30 and 90,869.80

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Solution

The fourth proportional to 161,947.30, 243,030.30 and 90,869.80 is: 136,366.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,947.30 : 243,030.30 = 90,869.80 : x
  2. Step 2: Convert to fraction form
    161,947.30/243,030.30 = 90,869.80/x
  3. Step 3: Cross multiply
    161,947.30x = 243,030.30 × 90,869.80
  4. Step 4: Simplify right side
    161,947.30x = 22,084,114,754.94
  5. Step 5: Solve for x
    x = 22,084,114,754.94/161,947.30
  6. Step 6: Final answer
    x = 136,366.06

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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.