Home / 212,304.51-292,987.23-121,677.85

Finding the Fourth Proportional to 212,304.51, 292,987.23 and 121,677.85

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Solution

The fourth proportional to 212,304.51, 292,987.23 and 121,677.85 is: 167,919.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,304.51 : 292,987.23 = 121,677.85 : x
  2. Step 2: Convert to fraction form
    212,304.51/292,987.23 = 121,677.85/x
  3. Step 3: Cross multiply
    212,304.51x = 292,987.23 × 121,677.85
  4. Step 4: Simplify right side
    212,304.51x = 35,650,056,223.86
  5. Step 5: Solve for x
    x = 35,650,056,223.86/212,304.51
  6. Step 6: Final answer
    x = 167,919.45

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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.