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Finding the Fourth Proportional to 151,813.62, 227,430.64 and 85,051.80

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Solution

The fourth proportional to 151,813.62, 227,430.64 and 85,051.80 is: 127,415.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,813.62 : 227,430.64 = 85,051.80 : x
  2. Step 2: Convert to fraction form
    151,813.62/227,430.64 = 85,051.80/x
  3. Step 3: Cross multiply
    151,813.62x = 227,430.64 × 85,051.80
  4. Step 4: Simplify right side
    151,813.62x = 19,343,385,307.15
  5. Step 5: Solve for x
    x = 19,343,385,307.15/151,813.62
  6. Step 6: Final answer
    x = 127,415.35

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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.