Home / 130,794.72-180,152.96-100,522.16

Finding the Fourth Proportional to 130,794.72, 180,152.96 and 100,522.16

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Solution

The fourth proportional to 130,794.72, 180,152.96 and 100,522.16 is: 138,456.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,794.72 : 180,152.96 = 100,522.16 : x
  2. Step 2: Convert to fraction form
    130,794.72/180,152.96 = 100,522.16/x
  3. Step 3: Cross multiply
    130,794.72x = 180,152.96 × 100,522.16
  4. Step 4: Simplify right side
    130,794.72x = 18,109,364,669.59
  5. Step 5: Solve for x
    x = 18,109,364,669.59/130,794.72
  6. Step 6: Final answer
    x = 138,456.39

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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.