Home / 130,177.81-179,594.04-81,751.25

Finding the Fourth Proportional to 130,177.81, 179,594.04 and 81,751.25

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Solution

The fourth proportional to 130,177.81, 179,594.04 and 81,751.25 is: 112,784.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,177.81 : 179,594.04 = 81,751.25 : x
  2. Step 2: Convert to fraction form
    130,177.81/179,594.04 = 81,751.25/x
  3. Step 3: Cross multiply
    130,177.81x = 179,594.04 × 81,751.25
  4. Step 4: Simplify right side
    130,177.81x = 14,682,037,262.55
  5. Step 5: Solve for x
    x = 14,682,037,262.55/130,177.81
  6. Step 6: Final answer
    x = 112,784.49

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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.