Home / 97,231.40-145,904.70-70,869.80

Finding the Fourth Proportional to 97,231.40, 145,904.70 and 70,869.80

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Solution

The fourth proportional to 97,231.40, 145,904.70 and 70,869.80 is: 106,346.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,231.40 : 145,904.70 = 70,869.80 : x
  2. Step 2: Convert to fraction form
    97,231.40/145,904.70 = 70,869.80/x
  3. Step 3: Cross multiply
    97,231.40x = 145,904.70 × 70,869.80
  4. Step 4: Simplify right side
    97,231.40x = 10,340,236,908.06
  5. Step 5: Solve for x
    x = 10,340,236,908.06/97,231.40
  6. Step 6: Final answer
    x = 106,346.68

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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.