Home / 115,151.08-172,722.48-40,271.08

Finding the Fourth Proportional to 115,151.08, 172,722.48 and 40,271.08

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Solution

The fourth proportional to 115,151.08, 172,722.48 and 40,271.08 is: 60,405.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,151.08 : 172,722.48 = 40,271.08 : x
  2. Step 2: Convert to fraction form
    115,151.08/172,722.48 = 40,271.08/x
  3. Step 3: Cross multiply
    115,151.08x = 172,722.48 × 40,271.08
  4. Step 4: Simplify right side
    115,151.08x = 6,955,720,809.88
  5. Step 5: Solve for x
    x = 6,955,720,809.88/115,151.08
  6. Step 6: Final answer
    x = 60,405.17

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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.