Home / 142,761.24-197,001.93-79,094.40

Finding the Fourth Proportional to 142,761.24, 197,001.93 and 79,094.40

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Solution

The fourth proportional to 142,761.24, 197,001.93 and 79,094.40 is: 109,145.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,761.24 : 197,001.93 = 79,094.40 : x
  2. Step 2: Convert to fraction form
    142,761.24/197,001.93 = 79,094.40/x
  3. Step 3: Cross multiply
    142,761.24x = 197,001.93 × 79,094.40
  4. Step 4: Simplify right side
    142,761.24x = 15,581,749,452.19
  5. Step 5: Solve for x
    x = 15,581,749,452.19/142,761.24
  6. Step 6: Final answer
    x = 109,145.52

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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.