Home / 130,420.48-195,643.68-47,320.96

Finding the Fourth Proportional to 130,420.48, 195,643.68 and 47,320.96

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Solution

The fourth proportional to 130,420.48, 195,643.68 and 47,320.96 is: 70,986.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,420.48 : 195,643.68 = 47,320.96 : x
  2. Step 2: Convert to fraction form
    130,420.48/195,643.68 = 47,320.96/x
  3. Step 3: Cross multiply
    130,420.48x = 195,643.68 × 47,320.96
  4. Step 4: Simplify right side
    130,420.48x = 9,258,046,755.53
  5. Step 5: Solve for x
    x = 9,258,046,755.53/130,420.48
  6. Step 6: Final answer
    x = 70,986.14

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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.