Home / 120,875.09-181,312.63-41,989.39

Finding the Fourth Proportional to 120,875.09, 181,312.63 and 41,989.39

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Solution

The fourth proportional to 120,875.09, 181,312.63 and 41,989.39 is: 62,984.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,875.09 : 181,312.63 = 41,989.39 : x
  2. Step 2: Convert to fraction form
    120,875.09/181,312.63 = 41,989.39/x
  3. Step 3: Cross multiply
    120,875.09x = 181,312.63 × 41,989.39
  4. Step 4: Simplify right side
    120,875.09x = 7,613,206,174.74
  5. Step 5: Solve for x
    x = 7,613,206,174.74/120,875.09
  6. Step 6: Final answer
    x = 62,984.08

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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.