Home / 115,155.41-172,739.30-36,275.81

Finding the Fourth Proportional to 115,155.41, 172,739.30 and 36,275.81

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Solution

The fourth proportional to 115,155.41, 172,739.30 and 36,275.81 is: 54,415.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,155.41 : 172,739.30 = 36,275.81 : x
  2. Step 2: Convert to fraction form
    115,155.41/172,739.30 = 36,275.81/x
  3. Step 3: Cross multiply
    115,155.41x = 172,739.30 × 36,275.81
  4. Step 4: Simplify right side
    115,155.41x = 6,266,256,981.26
  5. Step 5: Solve for x
    x = 6,266,256,981.26/115,155.41
  6. Step 6: Final answer
    x = 54,415.66

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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.