Home / 115,940.96-160,002.48-64,955.84

Finding the Fourth Proportional to 115,940.96, 160,002.48 and 64,955.84

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Solution

The fourth proportional to 115,940.96, 160,002.48 and 64,955.84 is: 89,641.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,940.96 : 160,002.48 = 64,955.84 : x
  2. Step 2: Convert to fraction form
    115,940.96/160,002.48 = 64,955.84/x
  3. Step 3: Cross multiply
    115,940.96x = 160,002.48 × 64,955.84
  4. Step 4: Simplify right side
    115,940.96x = 10,393,095,490.48
  5. Step 5: Solve for x
    x = 10,393,095,490.48/115,940.96
  6. Step 6: Final answer
    x = 89,641.28

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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.