Home / 130,390.86-179,939.98-73,813.18

Finding the Fourth Proportional to 130,390.86, 179,939.98 and 73,813.18

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Solution

The fourth proportional to 130,390.86, 179,939.98 and 73,813.18 is: 101,862.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,390.86 : 179,939.98 = 73,813.18 : x
  2. Step 2: Convert to fraction form
    130,390.86/179,939.98 = 73,813.18/x
  3. Step 3: Cross multiply
    130,390.86x = 179,939.98 × 73,813.18
  4. Step 4: Simplify right side
    130,390.86x = 13,281,942,132.94
  5. Step 5: Solve for x
    x = 13,281,942,132.94/130,390.86
  6. Step 6: Final answer
    x = 101,862.52

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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.