Home / 112,391.36-168,611.70-42,270.68

Finding the Fourth Proportional to 112,391.36, 168,611.70 and 42,270.68

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Solution

The fourth proportional to 112,391.36, 168,611.70 and 42,270.68 is: 63,415.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,391.36 : 168,611.70 = 42,270.68 : x
  2. Step 2: Convert to fraction form
    112,391.36/168,611.70 = 42,270.68/x
  3. Step 3: Cross multiply
    112,391.36x = 168,611.70 × 42,270.68
  4. Step 4: Simplify right side
    112,391.36x = 7,127,331,214.96
  5. Step 5: Solve for x
    x = 7,127,331,214.96/112,391.36
  6. Step 6: Final answer
    x = 63,415.29

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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.