Home / 130,943.14-180,695.70-76,500.36

Finding the Fourth Proportional to 130,943.14, 180,695.70 and 76,500.36

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Solution

The fourth proportional to 130,943.14, 180,695.70 and 76,500.36 is: 105,567.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,943.14 : 180,695.70 = 76,500.36 : x
  2. Step 2: Convert to fraction form
    130,943.14/180,695.70 = 76,500.36/x
  3. Step 3: Cross multiply
    130,943.14x = 180,695.70 × 76,500.36
  4. Step 4: Simplify right side
    130,943.14x = 13,823,286,100.45
  5. Step 5: Solve for x
    x = 13,823,286,100.45/130,943.14
  6. Step 6: Final answer
    x = 105,567.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.