Home / 121,148.44-181,683.84-40,080.40

Finding the Fourth Proportional to 121,148.44, 181,683.84 and 40,080.40

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Solution

The fourth proportional to 121,148.44, 181,683.84 and 40,080.40 is: 60,107.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,148.44 : 181,683.84 = 40,080.40 : x
  2. Step 2: Convert to fraction form
    121,148.44/181,683.84 = 40,080.40/x
  3. Step 3: Cross multiply
    121,148.44x = 181,683.84 × 40,080.40
  4. Step 4: Simplify right side
    121,148.44x = 7,281,960,980.74
  5. Step 5: Solve for x
    x = 7,281,960,980.74/121,148.44
  6. Step 6: Final answer
    x = 60,107.76

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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.