Home / 130,306.25-195,459.78-31,810.25

Finding the Fourth Proportional to 130,306.25, 195,459.78 and 31,810.25

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Solution

The fourth proportional to 130,306.25, 195,459.78 and 31,810.25 is: 47,715.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,306.25 : 195,459.78 = 31,810.25 : x
  2. Step 2: Convert to fraction form
    130,306.25/195,459.78 = 31,810.25/x
  3. Step 3: Cross multiply
    130,306.25x = 195,459.78 × 31,810.25
  4. Step 4: Simplify right side
    130,306.25x = 6,217,624,466.75
  5. Step 5: Solve for x
    x = 6,217,624,466.75/130,306.25
  6. Step 6: Final answer
    x = 47,715.47

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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.