Home / 141,853.60-212,780.40-71,869.60

Finding the Fourth Proportional to 141,853.60, 212,780.40 and 71,869.60

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Solution

The fourth proportional to 141,853.60, 212,780.40 and 71,869.60 is: 107,804.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,853.60 : 212,780.40 = 71,869.60 : x
  2. Step 2: Convert to fraction form
    141,853.60/212,780.40 = 71,869.60/x
  3. Step 3: Cross multiply
    141,853.60x = 212,780.40 × 71,869.60
  4. Step 4: Simplify right side
    141,853.60x = 15,292,442,235.84
  5. Step 5: Solve for x
    x = 15,292,442,235.84/141,853.60
  6. Step 6: Final answer
    x = 107,804.40

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1.5x scale

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.