Home / 161,730.87-242,643.85-47,881.57

Finding the Fourth Proportional to 161,730.87, 242,643.85 and 47,881.57

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Solution

The fourth proportional to 161,730.87, 242,643.85 and 47,881.57 is: 71,836.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,730.87 : 242,643.85 = 47,881.57 : x
  2. Step 2: Convert to fraction form
    161,730.87/242,643.85 = 47,881.57/x
  3. Step 3: Cross multiply
    161,730.87x = 242,643.85 × 47,881.57
  4. Step 4: Simplify right side
    161,730.87x = 11,618,168,001.94
  5. Step 5: Solve for x
    x = 11,618,168,001.94/161,730.87
  6. Step 6: Final answer
    x = 71,836.43

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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.