Home / 319,162.16-478,852.61-108,947.72

Finding the Fourth Proportional to 319,162.16, 478,852.61 and 108,947.72

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Solution

The fourth proportional to 319,162.16, 478,852.61 and 108,947.72 is: 163,458.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,162.16 : 478,852.61 = 108,947.72 : x
  2. Step 2: Convert to fraction form
    319,162.16/478,852.61 = 108,947.72/x
  3. Step 3: Cross multiply
    319,162.16x = 478,852.61 × 108,947.72
  4. Step 4: Simplify right side
    319,162.16x = 52,169,900,727.94
  5. Step 5: Solve for x
    x = 52,169,900,727.94/319,162.16
  6. Step 6: Final answer
    x = 163,458.91

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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.