Home / 163,504.14-245,150.78-78,068.78

Finding the Fourth Proportional to 163,504.14, 245,150.78 and 78,068.78

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Solution

The fourth proportional to 163,504.14, 245,150.78 and 78,068.78 is: 117,052.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,504.14 : 245,150.78 = 78,068.78 : x
  2. Step 2: Convert to fraction form
    163,504.14/245,150.78 = 78,068.78/x
  3. Step 3: Cross multiply
    163,504.14x = 245,150.78 × 78,068.78
  4. Step 4: Simplify right side
    163,504.14x = 19,138,622,533.18
  5. Step 5: Solve for x
    x = 19,138,622,533.18/163,504.14
  6. Step 6: Final answer
    x = 117,052.83

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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.