Home / 212,157.03-292,776.35-121,542.33

Finding the Fourth Proportional to 212,157.03, 292,776.35 and 121,542.33

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Solution

The fourth proportional to 212,157.03, 292,776.35 and 121,542.33 is: 167,728.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,157.03 : 292,776.35 = 121,542.33 : x
  2. Step 2: Convert to fraction form
    212,157.03/292,776.35 = 121,542.33/x
  3. Step 3: Cross multiply
    212,157.03x = 292,776.35 × 121,542.33
  4. Step 4: Simplify right side
    212,157.03x = 35,584,719,140.18
  5. Step 5: Solve for x
    x = 35,584,719,140.18/212,157.03
  6. Step 6: Final answer
    x = 167,728.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.