Home / 121,308.18-181,989.96-37,080.32

Finding the Fourth Proportional to 121,308.18, 181,989.96 and 37,080.32

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Solution

The fourth proportional to 121,308.18, 181,989.96 and 37,080.32 is: 55,628.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,308.18 : 181,989.96 = 37,080.32 : x
  2. Step 2: Convert to fraction form
    121,308.18/181,989.96 = 37,080.32/x
  3. Step 3: Cross multiply
    121,308.18x = 181,989.96 × 37,080.32
  4. Step 4: Simplify right side
    121,308.18x = 6,748,245,953.59
  5. Step 5: Solve for x
    x = 6,748,245,953.59/121,308.18
  6. Step 6: Final answer
    x = 55,628.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.