Home / 141,954.40-212,931.60-120,845.80

Finding the Fourth Proportional to 141,954.40, 212,931.60 and 120,845.80

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Solution

The fourth proportional to 141,954.40, 212,931.60 and 120,845.80 is: 181,268.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,954.40 : 212,931.60 = 120,845.80 : x
  2. Step 2: Convert to fraction form
    141,954.40/212,931.60 = 120,845.80/x
  3. Step 3: Cross multiply
    141,954.40x = 212,931.60 × 120,845.80
  4. Step 4: Simplify right side
    141,954.40x = 25,731,889,547.28
  5. Step 5: Solve for x
    x = 25,731,889,547.28/141,954.40
  6. Step 6: Final answer
    x = 181,268.70

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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.