Home / 245,822.04-368,821.76-85,921.66

Finding the Fourth Proportional to 245,822.04, 368,821.76 and 85,921.66

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Solution

The fourth proportional to 245,822.04, 368,821.76 and 85,921.66 is: 128,913.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,822.04 : 368,821.76 = 85,921.66 : x
  2. Step 2: Convert to fraction form
    245,822.04/368,821.76 = 85,921.66/x
  3. Step 3: Cross multiply
    245,822.04x = 368,821.76 × 85,921.66
  4. Step 4: Simplify right side
    245,822.04x = 31,689,777,894.74
  5. Step 5: Solve for x
    x = 31,689,777,894.74/245,822.04
  6. Step 6: Final answer
    x = 128,913.49

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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.