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Finding the Fourth Proportional to 189,876.32, 262,036.32 and 122,808.32

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Solution

The fourth proportional to 189,876.32, 262,036.32 and 122,808.32 is: 169,480.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,876.32 : 262,036.32 = 122,808.32 : x
  2. Step 2: Convert to fraction form
    189,876.32/262,036.32 = 122,808.32/x
  3. Step 3: Cross multiply
    189,876.32x = 262,036.32 × 122,808.32
  4. Step 4: Simplify right side
    189,876.32x = 32,180,240,238.18
  5. Step 5: Solve for x
    x = 32,180,240,238.18/189,876.32
  6. Step 6: Final answer
    x = 169,480.01

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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.