Home / 115,558.48-159,468.64-64,572.16

Finding the Fourth Proportional to 115,558.48, 159,468.64 and 64,572.16

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Solution

The fourth proportional to 115,558.48, 159,468.64 and 64,572.16 is: 89,108.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,558.48 : 159,468.64 = 64,572.16 : x
  2. Step 2: Convert to fraction form
    115,558.48/159,468.64 = 64,572.16/x
  3. Step 3: Cross multiply
    115,558.48x = 159,468.64 × 64,572.16
  4. Step 4: Simplify right side
    115,558.48x = 10,297,234,537.06
  5. Step 5: Solve for x
    x = 10,297,234,537.06/115,558.48
  6. Step 6: Final answer
    x = 89,108.43

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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.