Home / 112,152.51-168,145.70-67,768.88

Finding the Fourth Proportional to 112,152.51, 168,145.70 and 67,768.88

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Solution

The fourth proportional to 112,152.51, 168,145.70 and 67,768.88 is: 101,603.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,152.51 : 168,145.70 = 67,768.88 : x
  2. Step 2: Convert to fraction form
    112,152.51/168,145.70 = 67,768.88/x
  3. Step 3: Cross multiply
    112,152.51x = 168,145.70 × 67,768.88
  4. Step 4: Simplify right side
    112,152.51x = 11,395,044,586.24
  5. Step 5: Solve for x
    x = 11,395,044,586.24/112,152.51
  6. Step 6: Final answer
    x = 101,603.12

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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.