Home / 112,188.08-168,232.78-42,018.19

Finding the Fourth Proportional to 112,188.08, 168,232.78 and 42,018.19

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Solution

The fourth proportional to 112,188.08, 168,232.78 and 42,018.19 is: 63,008.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,188.08 : 168,232.78 = 42,018.19 : x
  2. Step 2: Convert to fraction form
    112,188.08/168,232.78 = 42,018.19/x
  3. Step 3: Cross multiply
    112,188.08x = 168,232.78 × 42,018.19
  4. Step 4: Simplify right side
    112,188.08x = 7,068,836,546.21
  5. Step 5: Solve for x
    x = 7,068,836,546.21/112,188.08
  6. Step 6: Final answer
    x = 63,008.80

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1.5x scale

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.