Home / 107,539.20-161,341.20-57,643.20

Finding the Fourth Proportional to 107,539.20, 161,341.20 and 57,643.20

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Solution

The fourth proportional to 107,539.20, 161,341.20 and 57,643.20 is: 86,482.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,539.20 : 161,341.20 = 57,643.20 : x
  2. Step 2: Convert to fraction form
    107,539.20/161,341.20 = 57,643.20/x
  3. Step 3: Cross multiply
    107,539.20x = 161,341.20 × 57,643.20
  4. Step 4: Simplify right side
    107,539.20x = 9,300,223,059.84
  5. Step 5: Solve for x
    x = 9,300,223,059.84/107,539.20
  6. Step 6: Final answer
    x = 86,482.17

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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.