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Finding the Fourth Proportional to 144,128.68, 216,042.56 and 49,330.94

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Solution

The fourth proportional to 144,128.68, 216,042.56 and 49,330.94 is: 73,944.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,128.68 : 216,042.56 = 49,330.94 : x
  2. Step 2: Convert to fraction form
    144,128.68/216,042.56 = 49,330.94/x
  3. Step 3: Cross multiply
    144,128.68x = 216,042.56 × 49,330.94
  4. Step 4: Simplify right side
    144,128.68x = 10,657,582,564.81
  5. Step 5: Solve for x
    x = 10,657,582,564.81/144,128.68
  6. Step 6: Final answer
    x = 73,944.91

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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.