Home / 153,983.72-212,380.44-132,509.66

Finding the Fourth Proportional to 153,983.72, 212,380.44 and 132,509.66

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Solution

The fourth proportional to 153,983.72, 212,380.44 and 132,509.66 is: 182,762.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,983.72 : 212,380.44 = 132,509.66 : x
  2. Step 2: Convert to fraction form
    153,983.72/212,380.44 = 132,509.66/x
  3. Step 3: Cross multiply
    153,983.72x = 212,380.44 × 132,509.66
  4. Step 4: Simplify right side
    153,983.72x = 28,142,459,895.05
  5. Step 5: Solve for x
    x = 28,142,459,895.05/153,983.72
  6. Step 6: Final answer
    x = 182,762.57

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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.