Home / 130,794.35-180,152.44-100,521.74

Finding the Fourth Proportional to 130,794.35, 180,152.44 and 100,521.74

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Solution

The fourth proportional to 130,794.35, 180,152.44 and 100,521.74 is: 138,455.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,794.35 : 180,152.44 = 100,521.74 : x
  2. Step 2: Convert to fraction form
    130,794.35/180,152.44 = 100,521.74/x
  3. Step 3: Cross multiply
    130,794.35x = 180,152.44 × 100,521.74
  4. Step 4: Simplify right side
    130,794.35x = 18,109,236,933.12
  5. Step 5: Solve for x
    x = 18,109,236,933.12/130,794.35
  6. Step 6: Final answer
    x = 138,455.81

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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.