Home / 130,209.70-195,313.14-98,812.64

Finding the Fourth Proportional to 130,209.70, 195,313.14 and 98,812.64

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Solution

The fourth proportional to 130,209.70, 195,313.14 and 98,812.64 is: 148,217.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,209.70 : 195,313.14 = 98,812.64 : x
  2. Step 2: Convert to fraction form
    130,209.70/195,313.14 = 98,812.64/x
  3. Step 3: Cross multiply
    130,209.70x = 195,313.14 × 98,812.64
  4. Step 4: Simplify right side
    130,209.70x = 19,299,406,990.09
  5. Step 5: Solve for x
    x = 19,299,406,990.09/130,209.70
  6. Step 6: Final answer
    x = 148,217.89

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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.