Home / 115,071.36-158,777.28-64,759.68

Finding the Fourth Proportional to 115,071.36, 158,777.28 and 64,759.68

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Solution

The fourth proportional to 115,071.36, 158,777.28 and 64,759.68 is: 89,356.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,071.36 : 158,777.28 = 64,759.68 : x
  2. Step 2: Convert to fraction form
    115,071.36/158,777.28 = 64,759.68/x
  3. Step 3: Cross multiply
    115,071.36x = 158,777.28 × 64,759.68
  4. Step 4: Simplify right side
    115,071.36x = 10,282,365,844.07
  5. Step 5: Solve for x
    x = 10,282,365,844.07/115,071.36
  6. Step 6: Final answer
    x = 89,356.43

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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.