Home / 162,124-242,986.32-115,122.40

Finding the Fourth Proportional to 162,124, 242,986.32 and 115,122.40

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Solution

The fourth proportional to 162,124, 242,986.32 and 115,122.40 is: 172,541.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,124 : 242,986.32 = 115,122.40 : x
  2. Step 2: Convert to fraction form
    162,124/242,986.32 = 115,122.40/x
  3. Step 3: Cross multiply
    162,124x = 242,986.32 × 115,122.40
  4. Step 4: Simplify right side
    162,124x = 27,973,168,325.57
  5. Step 5: Solve for x
    x = 27,973,168,325.57/162,124
  6. Step 6: Final answer
    x = 172,541.81

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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.