Home / 162,388.13-224,099.66-90,780.08

Finding the Fourth Proportional to 162,388.13, 224,099.66 and 90,780.08

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Solution

The fourth proportional to 162,388.13, 224,099.66 and 90,780.08 is: 125,278.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,388.13 : 224,099.66 = 90,780.08 : x
  2. Step 2: Convert to fraction form
    162,388.13/224,099.66 = 90,780.08/x
  3. Step 3: Cross multiply
    162,388.13x = 224,099.66 × 90,780.08
  4. Step 4: Simplify right side
    162,388.13x = 20,343,784,169.22
  5. Step 5: Solve for x
    x = 20,343,784,169.22/162,388.13
  6. Step 6: Final answer
    x = 125,278.77

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1.5x scale

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.