Home / 130,527.12-195,878.16-83,812.80

Finding the Fourth Proportional to 130,527.12, 195,878.16 and 83,812.80

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Solution

The fourth proportional to 130,527.12, 195,878.16 and 83,812.80 is: 125,775.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,527.12 : 195,878.16 = 83,812.80 : x
  2. Step 2: Convert to fraction form
    130,527.12/195,878.16 = 83,812.80/x
  3. Step 3: Cross multiply
    130,527.12x = 195,878.16 × 83,812.80
  4. Step 4: Simplify right side
    130,527.12x = 16,417,097,048.45
  5. Step 5: Solve for x
    x = 16,417,097,048.45/130,527.12
  6. Step 6: Final answer
    x = 125,775.37

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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.