Home / 130,281.76-195,448.64-55,401.44

Finding the Fourth Proportional to 130,281.76, 195,448.64 and 55,401.44

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Solution

The fourth proportional to 130,281.76, 195,448.64 and 55,401.44 is: 83,113.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,281.76 : 195,448.64 = 55,401.44 : x
  2. Step 2: Convert to fraction form
    130,281.76/195,448.64 = 55,401.44/x
  3. Step 3: Cross multiply
    130,281.76x = 195,448.64 × 55,401.44
  4. Step 4: Simplify right side
    130,281.76x = 10,828,136,102.04
  5. Step 5: Solve for x
    x = 10,828,136,102.04/130,281.76
  6. Step 6: Final answer
    x = 83,113.22

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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.