Home / 129,820.16-179,160.20-73,230.32

Finding the Fourth Proportional to 129,820.16, 179,160.20 and 73,230.32

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Solution

The fourth proportional to 129,820.16, 179,160.20 and 73,230.32 is: 101,062.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,820.16 : 179,160.20 = 73,230.32 : x
  2. Step 2: Convert to fraction form
    129,820.16/179,160.20 = 73,230.32/x
  3. Step 3: Cross multiply
    129,820.16x = 179,160.20 × 73,230.32
  4. Step 4: Simplify right side
    129,820.16x = 13,119,958,777.26
  5. Step 5: Solve for x
    x = 13,119,958,777.26/129,820.16
  6. Step 6: Final answer
    x = 101,062.57

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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.