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Finding the Fourth Proportional to 143,259.59, 214,594.11 and 83,915.35

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Solution

The fourth proportional to 143,259.59, 214,594.11 and 83,915.35 is: 125,700.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,259.59 : 214,594.11 = 83,915.35 : x
  2. Step 2: Convert to fraction form
    143,259.59/214,594.11 = 83,915.35/x
  3. Step 3: Cross multiply
    143,259.59x = 214,594.11 × 83,915.35
  4. Step 4: Simplify right side
    143,259.59x = 18,007,739,848.59
  5. Step 5: Solve for x
    x = 18,007,739,848.59/143,259.59
  6. Step 6: Final answer
    x = 125,700.07

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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.