Home / 162,780.32-243,733-103,293.92

Finding the Fourth Proportional to 162,780.32, 243,733 and 103,293.92

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Solution

The fourth proportional to 162,780.32, 243,733 and 103,293.92 is: 154,663.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,780.32 : 243,733 = 103,293.92 : x
  2. Step 2: Convert to fraction form
    162,780.32/243,733 = 103,293.92/x
  3. Step 3: Cross multiply
    162,780.32x = 243,733 × 103,293.92
  4. Step 4: Simplify right side
    162,780.32x = 25,176,137,003.36
  5. Step 5: Solve for x
    x = 25,176,137,003.36/162,780.32
  6. Step 6: Final answer
    x = 154,663.27

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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.