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Finding the Fourth Proportional to 134,340.60, 201,565.44 and 86,362.86

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Solution

The fourth proportional to 134,340.60, 201,565.44 and 86,362.86 is: 129,579.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,340.60 : 201,565.44 = 86,362.86 : x
  2. Step 2: Convert to fraction form
    134,340.60/201,565.44 = 86,362.86/x
  3. Step 3: Cross multiply
    134,340.60x = 201,565.44 × 86,362.86
  4. Step 4: Simplify right side
    134,340.60x = 17,407,767,875.56
  5. Step 5: Solve for x
    x = 17,407,767,875.56/134,340.60
  6. Step 6: Final answer
    x = 129,579.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.