Home / 120,807.39-181,131.11-57,637.26

Finding the Fourth Proportional to 120,807.39, 181,131.11 and 57,637.26

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Solution

The fourth proportional to 120,807.39, 181,131.11 and 57,637.26 is: 86,417.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,807.39 : 181,131.11 = 57,637.26 : x
  2. Step 2: Convert to fraction form
    120,807.39/181,131.11 = 57,637.26/x
  3. Step 3: Cross multiply
    120,807.39x = 181,131.11 × 57,637.26
  4. Step 4: Simplify right side
    120,807.39x = 10,439,900,809.11
  5. Step 5: Solve for x
    x = 10,439,900,809.11/120,807.39
  6. Step 6: Final answer
    x = 86,417.74

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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.