Home / 156,985.65-235,478.48-143,207.55

Finding the Fourth Proportional to 156,985.65, 235,478.48 and 143,207.55

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Solution

The fourth proportional to 156,985.65, 235,478.48 and 143,207.55 is: 214,811.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,985.65 : 235,478.48 = 143,207.55 : x
  2. Step 2: Convert to fraction form
    156,985.65/235,478.48 = 143,207.55/x
  3. Step 3: Cross multiply
    156,985.65x = 235,478.48 × 143,207.55
  4. Step 4: Simplify right side
    156,985.65x = 33,722,295,482.49
  5. Step 5: Solve for x
    x = 33,722,295,482.49/156,985.65
  6. Step 6: Final answer
    x = 214,811.33

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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.