Home / 120,732.81-181,025.40-57,572.25

Finding the Fourth Proportional to 120,732.81, 181,025.40 and 57,572.25

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Solution

The fourth proportional to 120,732.81, 181,025.40 and 57,572.25 is: 86,323.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,732.81 : 181,025.40 = 57,572.25 : x
  2. Step 2: Convert to fraction form
    120,732.81/181,025.40 = 57,572.25/x
  3. Step 3: Cross multiply
    120,732.81x = 181,025.40 × 57,572.25
  4. Step 4: Simplify right side
    120,732.81x = 10,422,038,392.16
  5. Step 5: Solve for x
    x = 10,422,038,392.16/120,732.81
  6. Step 6: Final answer
    x = 86,323.17

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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.