Home / 144,004.10-216,006.20-128,840.90

Finding the Fourth Proportional to 144,004.10, 216,006.20 and 128,840.90

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Solution

The fourth proportional to 144,004.10, 216,006.20 and 128,840.90 is: 193,261.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,004.10 : 216,006.20 = 128,840.90 : x
  2. Step 2: Convert to fraction form
    144,004.10/216,006.20 = 128,840.90/x
  3. Step 3: Cross multiply
    144,004.10x = 216,006.20 × 128,840.90
  4. Step 4: Simplify right side
    144,004.10x = 27,830,433,213.58
  5. Step 5: Solve for x
    x = 27,830,433,213.58/144,004.10
  6. Step 6: Final answer
    x = 193,261.39

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1.5x scale

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.