Home / 115,200.24-158,975.64-64,915.44

Finding the Fourth Proportional to 115,200.24, 158,975.64 and 64,915.44

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Solution

The fourth proportional to 115,200.24, 158,975.64 and 64,915.44 is: 89,582.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,200.24 : 158,975.64 = 64,915.44 : x
  2. Step 2: Convert to fraction form
    115,200.24/158,975.64 = 64,915.44/x
  3. Step 3: Cross multiply
    115,200.24x = 158,975.64 × 64,915.44
  4. Step 4: Simplify right side
    115,200.24x = 10,319,973,619.88
  5. Step 5: Solve for x
    x = 10,319,973,619.88/115,200.24
  6. Step 6: Final answer
    x = 89,582.92

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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.