Home / 315,152.45-472,732.78-104,790.39

Finding the Fourth Proportional to 315,152.45, 472,732.78 and 104,790.39

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Solution

The fourth proportional to 315,152.45, 472,732.78 and 104,790.39 is: 157,186.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,152.45 : 472,732.78 = 104,790.39 : x
  2. Step 2: Convert to fraction form
    315,152.45/472,732.78 = 104,790.39/x
  3. Step 3: Cross multiply
    315,152.45x = 472,732.78 × 104,790.39
  4. Step 4: Simplify right side
    315,152.45x = 49,537,852,381.98
  5. Step 5: Solve for x
    x = 49,537,852,381.98/315,152.45
  6. Step 6: Final answer
    x = 157,186.95

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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.