Home / 162,109.32-223,706.20-90,487.81

Finding the Fourth Proportional to 162,109.32, 223,706.20 and 90,487.81

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Solution

The fourth proportional to 162,109.32, 223,706.20 and 90,487.81 is: 124,870.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,109.32 : 223,706.20 = 90,487.81 : x
  2. Step 2: Convert to fraction form
    162,109.32/223,706.20 = 90,487.81/x
  3. Step 3: Cross multiply
    162,109.32x = 223,706.20 × 90,487.81
  4. Step 4: Simplify right side
    162,109.32x = 20,242,684,121.42
  5. Step 5: Solve for x
    x = 20,242,684,121.42/162,109.32
  6. Step 6: Final answer
    x = 124,870.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.