Home / 115,280.55-172,920.83-56,231.55

Finding the Fourth Proportional to 115,280.55, 172,920.83 and 56,231.55

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Solution

The fourth proportional to 115,280.55, 172,920.83 and 56,231.55 is: 84,347.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,280.55 : 172,920.83 = 56,231.55 : x
  2. Step 2: Convert to fraction form
    115,280.55/172,920.83 = 56,231.55/x
  3. Step 3: Cross multiply
    115,280.55x = 172,920.83 × 56,231.55
  4. Step 4: Simplify right side
    115,280.55x = 9,723,606,017.03
  5. Step 5: Solve for x
    x = 9,723,606,017.03/115,280.55
  6. Step 6: Final answer
    x = 84,347.33

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1.5x scale

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.