Home / 153,952.94-212,436.31-85,973.69

Finding the Fourth Proportional to 153,952.94, 212,436.31 and 85,973.69

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Solution

The fourth proportional to 153,952.94, 212,436.31 and 85,973.69 is: 118,633.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,952.94 : 212,436.31 = 85,973.69 : x
  2. Step 2: Convert to fraction form
    153,952.94/212,436.31 = 85,973.69/x
  3. Step 3: Cross multiply
    153,952.94x = 212,436.31 × 85,973.69
  4. Step 4: Simplify right side
    153,952.94x = 18,263,933,460.68
  5. Step 5: Solve for x
    x = 18,263,933,460.68/153,952.94
  6. Step 6: Final answer
    x = 118,633.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.