Home / 115,840.32-159,822.48-64,845.55

Finding the Fourth Proportional to 115,840.32, 159,822.48 and 64,845.55

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Solution

The fourth proportional to 115,840.32, 159,822.48 and 64,845.55 is: 89,466.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,840.32 : 159,822.48 = 64,845.55 : x
  2. Step 2: Convert to fraction form
    115,840.32/159,822.48 = 64,845.55/x
  3. Step 3: Cross multiply
    115,840.32x = 159,822.48 × 64,845.55
  4. Step 4: Simplify right side
    115,840.32x = 10,363,776,617.96
  5. Step 5: Solve for x
    x = 10,363,776,617.96/115,840.32
  6. Step 6: Final answer
    x = 89,466.06

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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.