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Finding the Fourth Proportional to 162,573.88, 223,853.40 and 142,317.40

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Solution

The fourth proportional to 162,573.88, 223,853.40 and 142,317.40 is: 195,961.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,573.88 : 223,853.40 = 142,317.40 : x
  2. Step 2: Convert to fraction form
    162,573.88/223,853.40 = 142,317.40/x
  3. Step 3: Cross multiply
    162,573.88x = 223,853.40 × 142,317.40
  4. Step 4: Simplify right side
    162,573.88x = 31,858,233,869.16
  5. Step 5: Solve for x
    x = 31,858,233,869.16/162,573.88
  6. Step 6: Final answer
    x = 195,961.58

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1.5x scale

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.