Home / 190,059.72-262,279.08-109,487

Finding the Fourth Proportional to 190,059.72, 262,279.08 and 109,487

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Solution

The fourth proportional to 190,059.72, 262,279.08 and 109,487 is: 151,090.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,059.72 : 262,279.08 = 109,487 : x
  2. Step 2: Convert to fraction form
    190,059.72/262,279.08 = 109,487/x
  3. Step 3: Cross multiply
    190,059.72x = 262,279.08 × 109,487
  4. Step 4: Simplify right side
    190,059.72x = 28,716,149,631.96
  5. Step 5: Solve for x
    x = 28,716,149,631.96/190,059.72
  6. Step 6: Final answer
    x = 151,090.14

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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.