Home / 158,975.64-219,323.52-102,420

Finding the Fourth Proportional to 158,975.64, 219,323.52 and 102,420

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Solution

The fourth proportional to 158,975.64, 219,323.52 and 102,420 is: 141,299.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,975.64 : 219,323.52 = 102,420 : x
  2. Step 2: Convert to fraction form
    158,975.64/219,323.52 = 102,420/x
  3. Step 3: Cross multiply
    158,975.64x = 219,323.52 × 102,420
  4. Step 4: Simplify right side
    158,975.64x = 22,463,114,918.40
  5. Step 5: Solve for x
    x = 22,463,114,918.40/158,975.64
  6. Step 6: Final answer
    x = 141,299.10

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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.