Home / 112,206.56-168,339.12-42,087.20

Finding the Fourth Proportional to 112,206.56, 168,339.12 and 42,087.20

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Solution

The fourth proportional to 112,206.56, 168,339.12 and 42,087.20 is: 63,141.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,206.56 : 168,339.12 = 42,087.20 : x
  2. Step 2: Convert to fraction form
    112,206.56/168,339.12 = 42,087.20/x
  3. Step 3: Cross multiply
    112,206.56x = 168,339.12 × 42,087.20
  4. Step 4: Simplify right side
    112,206.56x = 7,084,922,211.26
  5. Step 5: Solve for x
    x = 7,084,922,211.26/112,206.56
  6. Step 6: Final answer
    x = 63,141.78

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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.