Home / 157,178.85-235,636.04-68,365.47

Finding the Fourth Proportional to 157,178.85, 235,636.04 and 68,365.47

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Solution

The fourth proportional to 157,178.85, 235,636.04 and 68,365.47 is: 102,490.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,178.85 : 235,636.04 = 68,365.47 : x
  2. Step 2: Convert to fraction form
    157,178.85/235,636.04 = 68,365.47/x
  3. Step 3: Cross multiply
    157,178.85x = 235,636.04 × 68,365.47
  4. Step 4: Simplify right side
    157,178.85x = 16,109,367,968.08
  5. Step 5: Solve for x
    x = 16,109,367,968.08/157,178.85
  6. Step 6: Final answer
    x = 102,490.68

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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.