Home / 172,063.86-257,680.49-103,478.18

Finding the Fourth Proportional to 172,063.86, 257,680.49 and 103,478.18

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Solution

The fourth proportional to 172,063.86, 257,680.49 and 103,478.18 is: 154,967.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,063.86 : 257,680.49 = 103,478.18 : x
  2. Step 2: Convert to fraction form
    172,063.86/257,680.49 = 103,478.18/x
  3. Step 3: Cross multiply
    172,063.86x = 257,680.49 × 103,478.18
  4. Step 4: Simplify right side
    172,063.86x = 26,664,306,838.31
  5. Step 5: Solve for x
    x = 26,664,306,838.31/172,063.86
  6. Step 6: Final answer
    x = 154,967.50

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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.