Home / 97,246.20-145,869.30-90,685.20

Finding the Fourth Proportional to 97,246.20, 145,869.30 and 90,685.20

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Solution

The fourth proportional to 97,246.20, 145,869.30 and 90,685.20 is: 136,027.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,246.20 : 145,869.30 = 90,685.20 : x
  2. Step 2: Convert to fraction form
    97,246.20/145,869.30 = 90,685.20/x
  3. Step 3: Cross multiply
    97,246.20x = 145,869.30 × 90,685.20
  4. Step 4: Simplify right side
    97,246.20x = 13,228,186,644.36
  5. Step 5: Solve for x
    x = 13,228,186,644.36/97,246.20
  6. Step 6: Final answer
    x = 136,027.80

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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.