Home / 130,779.70-196,289.82-101,386.42

Finding the Fourth Proportional to 130,779.70, 196,289.82 and 101,386.42

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Solution

The fourth proportional to 130,779.70, 196,289.82 and 101,386.42 is: 152,172.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,779.70 : 196,289.82 = 101,386.42 : x
  2. Step 2: Convert to fraction form
    130,779.70/196,289.82 = 101,386.42/x
  3. Step 3: Cross multiply
    130,779.70x = 196,289.82 × 101,386.42
  4. Step 4: Simplify right side
    130,779.70x = 19,901,122,132.24
  5. Step 5: Solve for x
    x = 19,901,122,132.24/130,779.70
  6. Step 6: Final answer
    x = 152,172.87

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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.