Home / 121,280.01-181,698.34-87,917.32

Finding the Fourth Proportional to 121,280.01, 181,698.34 and 87,917.32

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Solution

The fourth proportional to 121,280.01, 181,698.34 and 87,917.32 is: 131,715.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,280.01 : 181,698.34 = 87,917.32 : x
  2. Step 2: Convert to fraction form
    121,280.01/181,698.34 = 87,917.32/x
  3. Step 3: Cross multiply
    121,280.01x = 181,698.34 × 87,917.32
  4. Step 4: Simplify right side
    121,280.01x = 15,974,431,101.25
  5. Step 5: Solve for x
    x = 15,974,431,101.25/121,280.01
  6. Step 6: Final answer
    x = 131,715.29

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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.