Home / 112,397.85-168,513.75-53,164.32

Finding the Fourth Proportional to 112,397.85, 168,513.75 and 53,164.32

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Solution

The fourth proportional to 112,397.85, 168,513.75 and 53,164.32 is: 79,707.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,397.85 : 168,513.75 = 53,164.32 : x
  2. Step 2: Convert to fraction form
    112,397.85/168,513.75 = 53,164.32/x
  3. Step 3: Cross multiply
    112,397.85x = 168,513.75 × 53,164.32
  4. Step 4: Simplify right side
    112,397.85x = 8,958,918,929.40
  5. Step 5: Solve for x
    x = 8,958,918,929.40/112,397.85
  6. Step 6: Final answer
    x = 79,707.21

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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.