Home / 114,963.18-172,149.53-70,455

Finding the Fourth Proportional to 114,963.18, 172,149.53 and 70,455

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Solution

The fourth proportional to 114,963.18, 172,149.53 and 70,455 is: 105,501.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,963.18 : 172,149.53 = 70,455 : x
  2. Step 2: Convert to fraction form
    114,963.18/172,149.53 = 70,455/x
  3. Step 3: Cross multiply
    114,963.18x = 172,149.53 × 70,455
  4. Step 4: Simplify right side
    114,963.18x = 12,128,794,783.88
  5. Step 5: Solve for x
    x = 12,128,794,783.88/114,963.18
  6. Step 6: Final answer
    x = 105,501.56

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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.