Home / 212,305.01-292,987.92-121,678.35

Finding the Fourth Proportional to 212,305.01, 292,987.92 and 121,678.35

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Solution

The fourth proportional to 212,305.01, 292,987.92 and 121,678.35 is: 167,920.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,305.01 : 292,987.92 = 121,678.35 : x
  2. Step 2: Convert to fraction form
    212,305.01/292,987.92 = 121,678.35/x
  3. Step 3: Cross multiply
    212,305.01x = 292,987.92 × 121,678.35
  4. Step 4: Simplify right side
    212,305.01x = 35,650,286,675.53
  5. Step 5: Solve for x
    x = 35,650,286,675.53/212,305.01
  6. Step 6: Final answer
    x = 167,920.14

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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.