Home / 153,942.64-212,476.26-90,300.94

Finding the Fourth Proportional to 153,942.64, 212,476.26 and 90,300.94

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Solution

The fourth proportional to 153,942.64, 212,476.26 and 90,300.94 is: 124,636.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,942.64 : 212,476.26 = 90,300.94 : x
  2. Step 2: Convert to fraction form
    153,942.64/212,476.26 = 90,300.94/x
  3. Step 3: Cross multiply
    153,942.64x = 212,476.26 × 90,300.94
  4. Step 4: Simplify right side
    153,942.64x = 19,186,806,005.68
  5. Step 5: Solve for x
    x = 19,186,806,005.68/153,942.64
  6. Step 6: Final answer
    x = 124,636.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.