Home / 144,730.81-199,726.18-81,068.41

Finding the Fourth Proportional to 144,730.81, 199,726.18 and 81,068.41

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Solution

The fourth proportional to 144,730.81, 199,726.18 and 81,068.41 is: 111,873.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,730.81 : 199,726.18 = 81,068.41 : x
  2. Step 2: Convert to fraction form
    144,730.81/199,726.18 = 81,068.41/x
  3. Step 3: Cross multiply
    144,730.81x = 199,726.18 × 81,068.41
  4. Step 4: Simplify right side
    144,730.81x = 16,191,483,847.97
  5. Step 5: Solve for x
    x = 16,191,483,847.97/144,730.81
  6. Step 6: Final answer
    x = 111,873.10

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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.