Home / 130,206.48-179,683.38-76,496.40

Finding the Fourth Proportional to 130,206.48, 179,683.38 and 76,496.40

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Solution

The fourth proportional to 130,206.48, 179,683.38 and 76,496.40 is: 105,564.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,206.48 : 179,683.38 = 76,496.40 : x
  2. Step 2: Convert to fraction form
    130,206.48/179,683.38 = 76,496.40/x
  3. Step 3: Cross multiply
    130,206.48x = 179,683.38 × 76,496.40
  4. Step 4: Simplify right side
    130,206.48x = 13,745,131,709.83
  5. Step 5: Solve for x
    x = 13,745,131,709.83/130,206.48
  6. Step 6: Final answer
    x = 105,564.11

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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.