Home / 130,293.69-179,774.28-79,305.87

Finding the Fourth Proportional to 130,293.69, 179,774.28 and 79,305.87

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Solution

The fourth proportional to 130,293.69, 179,774.28 and 79,305.87 is: 109,423.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,293.69 : 179,774.28 = 79,305.87 : x
  2. Step 2: Convert to fraction form
    130,293.69/179,774.28 = 79,305.87/x
  3. Step 3: Cross multiply
    130,293.69x = 179,774.28 × 79,305.87
  4. Step 4: Simplify right side
    130,293.69x = 14,257,155,679.02
  5. Step 5: Solve for x
    x = 14,257,155,679.02/130,293.69
  6. Step 6: Final answer
    x = 109,423.22

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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.