Home / 130,139.04-195,212.88-36,642

Finding the Fourth Proportional to 130,139.04, 195,212.88 and 36,642

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Solution

The fourth proportional to 130,139.04, 195,212.88 and 36,642 is: 54,964.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,139.04 : 195,212.88 = 36,642 : x
  2. Step 2: Convert to fraction form
    130,139.04/195,212.88 = 36,642/x
  3. Step 3: Cross multiply
    130,139.04x = 195,212.88 × 36,642
  4. Step 4: Simplify right side
    130,139.04x = 7,152,990,348.96
  5. Step 5: Solve for x
    x = 7,152,990,348.96/130,139.04
  6. Step 6: Final answer
    x = 54,964.22

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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.