Home / 109,860.16-151,468.80-89,696.32

Finding the Fourth Proportional to 109,860.16, 151,468.80 and 89,696.32

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Solution

The fourth proportional to 109,860.16, 151,468.80 and 89,696.32 is: 123,668.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,860.16 : 151,468.80 = 89,696.32 : x
  2. Step 2: Convert to fraction form
    109,860.16/151,468.80 = 89,696.32/x
  3. Step 3: Cross multiply
    109,860.16x = 151,468.80 × 89,696.32
  4. Step 4: Simplify right side
    109,860.16x = 13,586,193,954.82
  5. Step 5: Solve for x
    x = 13,586,193,954.82/109,860.16
  6. Step 6: Final answer
    x = 123,668.07

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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.