Home / 189,200.48-261,098.70-103,158.75

Finding the Fourth Proportional to 189,200.48, 261,098.70 and 103,158.75

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Solution

The fourth proportional to 189,200.48, 261,098.70 and 103,158.75 is: 142,360.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,200.48 : 261,098.70 = 103,158.75 : x
  2. Step 2: Convert to fraction form
    189,200.48/261,098.70 = 103,158.75/x
  3. Step 3: Cross multiply
    189,200.48x = 261,098.70 × 103,158.75
  4. Step 4: Simplify right side
    189,200.48x = 26,934,615,518.63
  5. Step 5: Solve for x
    x = 26,934,615,518.63/189,200.48
  6. Step 6: Final answer
    x = 142,360.19

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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.