Home / 114,720.36-172,088.14-30,479.35

Finding the Fourth Proportional to 114,720.36, 172,088.14 and 30,479.35

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Solution

The fourth proportional to 114,720.36, 172,088.14 and 30,479.35 is: 45,721.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,720.36 : 172,088.14 = 30,479.35 : x
  2. Step 2: Convert to fraction form
    114,720.36/172,088.14 = 30,479.35/x
  3. Step 3: Cross multiply
    114,720.36x = 172,088.14 × 30,479.35
  4. Step 4: Simplify right side
    114,720.36x = 5,245,134,649.91
  5. Step 5: Solve for x
    x = 5,245,134,649.91/114,720.36
  6. Step 6: Final answer
    x = 45,721.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.