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Finding the Fourth Proportional to 144,864.40, 217,037.40 and 124,128.40

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Solution

The fourth proportional to 144,864.40, 217,037.40 and 124,128.40 is: 185,970.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,864.40 : 217,037.40 = 124,128.40 : x
  2. Step 2: Convert to fraction form
    144,864.40/217,037.40 = 124,128.40/x
  3. Step 3: Cross multiply
    144,864.40x = 217,037.40 × 124,128.40
  4. Step 4: Simplify right side
    144,864.40x = 26,940,505,202.16
  5. Step 5: Solve for x
    x = 26,940,505,202.16/144,864.40
  6. Step 6: Final answer
    x = 185,970.50

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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.