Home / 129,051.60-193,577.40-121,275.60

Finding the Fourth Proportional to 129,051.60, 193,577.40 and 121,275.60

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Solution

The fourth proportional to 129,051.60, 193,577.40 and 121,275.60 is: 181,913.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,051.60 : 193,577.40 = 121,275.60 : x
  2. Step 2: Convert to fraction form
    129,051.60/193,577.40 = 121,275.60/x
  3. Step 3: Cross multiply
    129,051.60x = 193,577.40 × 121,275.60
  4. Step 4: Simplify right side
    129,051.60x = 23,476,215,331.44
  5. Step 5: Solve for x
    x = 23,476,215,331.44/129,051.60
  6. Step 6: Final answer
    x = 181,913.40

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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.