Home / 144,027.10-216,040.65-128,475.10

Finding the Fourth Proportional to 144,027.10, 216,040.65 and 128,475.10

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Solution

The fourth proportional to 144,027.10, 216,040.65 and 128,475.10 is: 192,712.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,027.10 : 216,040.65 = 128,475.10 : x
  2. Step 2: Convert to fraction form
    144,027.10/216,040.65 = 128,475.10/x
  3. Step 3: Cross multiply
    144,027.10x = 216,040.65 × 128,475.10
  4. Step 4: Simplify right side
    144,027.10x = 27,755,844,112.82
  5. Step 5: Solve for x
    x = 27,755,844,112.82/144,027.10
  6. Step 6: Final answer
    x = 192,712.65

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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.