Home / 155,666.56-233,638.12-80,838.35

Finding the Fourth Proportional to 155,666.56, 233,638.12 and 80,838.35

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Solution

The fourth proportional to 155,666.56, 233,638.12 and 80,838.35 is: 121,329.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,666.56 : 233,638.12 = 80,838.35 : x
  2. Step 2: Convert to fraction form
    155,666.56/233,638.12 = 80,838.35/x
  3. Step 3: Cross multiply
    155,666.56x = 233,638.12 × 80,838.35
  4. Step 4: Simplify right side
    155,666.56x = 18,886,921,241.12
  5. Step 5: Solve for x
    x = 18,886,921,241.12/155,666.56
  6. Step 6: Final answer
    x = 121,329.34

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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.