Home / 98,450.16-135,813.92-64,443.68

Finding the Fourth Proportional to 98,450.16, 135,813.92 and 64,443.68

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Solution

The fourth proportional to 98,450.16, 135,813.92 and 64,443.68 is: 88,901.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,450.16 : 135,813.92 = 64,443.68 : x
  2. Step 2: Convert to fraction form
    98,450.16/135,813.92 = 64,443.68/x
  3. Step 3: Cross multiply
    98,450.16x = 135,813.92 × 64,443.68
  4. Step 4: Simplify right side
    98,450.16x = 8,752,348,800.03
  5. Step 5: Solve for x
    x = 8,752,348,800.03/98,450.16
  6. Step 6: Final answer
    x = 88,901.32

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1.5x scale

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.