Home / 130,662.60-180,327.78-76,964.52

Finding the Fourth Proportional to 130,662.60, 180,327.78 and 76,964.52

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Solution

The fourth proportional to 130,662.60, 180,327.78 and 76,964.52 is: 106,218.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,662.60 : 180,327.78 = 76,964.52 : x
  2. Step 2: Convert to fraction form
    130,662.60/180,327.78 = 76,964.52/x
  3. Step 3: Cross multiply
    130,662.60x = 180,327.78 × 76,964.52
  4. Step 4: Simplify right side
    130,662.60x = 13,878,841,030.37
  5. Step 5: Solve for x
    x = 13,878,841,030.37/130,662.60
  6. Step 6: Final answer
    x = 106,218.93

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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.