Home / 121,130.36-181,703.22-38,027.64

Finding the Fourth Proportional to 121,130.36, 181,703.22 and 38,027.64

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Solution

The fourth proportional to 121,130.36, 181,703.22 and 38,027.64 is: 57,043.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,130.36 : 181,703.22 = 38,027.64 : x
  2. Step 2: Convert to fraction form
    121,130.36/181,703.22 = 38,027.64/x
  3. Step 3: Cross multiply
    121,130.36x = 181,703.22 × 38,027.64
  4. Step 4: Simplify right side
    121,130.36x = 6,909,744,637.00
  5. Step 5: Solve for x
    x = 6,909,744,637.00/121,130.36
  6. Step 6: Final answer
    x = 57,043.87

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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.