Home / 130,099.24-179,543.80-79,103.52

Finding the Fourth Proportional to 130,099.24, 179,543.80 and 79,103.52

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Solution

The fourth proportional to 130,099.24, 179,543.80 and 79,103.52 is: 109,167.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,099.24 : 179,543.80 = 79,103.52 : x
  2. Step 2: Convert to fraction form
    130,099.24/179,543.80 = 79,103.52/x
  3. Step 3: Cross multiply
    130,099.24x = 179,543.80 × 79,103.52
  4. Step 4: Simplify right side
    130,099.24x = 14,202,547,252.18
  5. Step 5: Solve for x
    x = 14,202,547,252.18/130,099.24
  6. Step 6: Final answer
    x = 109,167.03

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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.