Home / 130,156.80-195,089.40-55,264.20

Finding the Fourth Proportional to 130,156.80, 195,089.40 and 55,264.20

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Solution

The fourth proportional to 130,156.80, 195,089.40 and 55,264.20 is: 82,834.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,156.80 : 195,089.40 = 55,264.20 : x
  2. Step 2: Convert to fraction form
    130,156.80/195,089.40 = 55,264.20/x
  3. Step 3: Cross multiply
    130,156.80x = 195,089.40 × 55,264.20
  4. Step 4: Simplify right side
    130,156.80x = 10,781,459,619.48
  5. Step 5: Solve for x
    x = 10,781,459,619.48/130,156.80
  6. Step 6: Final answer
    x = 82,834.39

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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.