Home / 130,581.13-195,885.75-55,709.20

Finding the Fourth Proportional to 130,581.13, 195,885.75 and 55,709.20

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Solution

The fourth proportional to 130,581.13, 195,885.75 and 55,709.20 is: 83,569.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,581.13 : 195,885.75 = 55,709.20 : x
  2. Step 2: Convert to fraction form
    130,581.13/195,885.75 = 55,709.20/x
  3. Step 3: Cross multiply
    130,581.13x = 195,885.75 × 55,709.20
  4. Step 4: Simplify right side
    130,581.13x = 10,912,638,423.90
  5. Step 5: Solve for x
    x = 10,912,638,423.90/130,581.13
  6. Step 6: Final answer
    x = 83,569.80

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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.