Home / 189,460.47-261,448.91-112,940.07

Finding the Fourth Proportional to 189,460.47, 261,448.91 and 112,940.07

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Solution

The fourth proportional to 189,460.47, 261,448.91 and 112,940.07 is: 155,853.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,460.47 : 261,448.91 = 112,940.07 : x
  2. Step 2: Convert to fraction form
    189,460.47/261,448.91 = 112,940.07/x
  3. Step 3: Cross multiply
    189,460.47x = 261,448.91 × 112,940.07
  4. Step 4: Simplify right side
    189,460.47x = 29,528,059,181.15
  5. Step 5: Solve for x
    x = 29,528,059,181.15/189,460.47
  6. Step 6: Final answer
    x = 155,853.41

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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.