Home / 193,482.18-290,335.32-81,152.40

Finding the Fourth Proportional to 193,482.18, 290,335.32 and 81,152.40

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Solution

The fourth proportional to 193,482.18, 290,335.32 and 81,152.40 is: 121,775.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,482.18 : 290,335.32 = 81,152.40 : x
  2. Step 2: Convert to fraction form
    193,482.18/290,335.32 = 81,152.40/x
  3. Step 3: Cross multiply
    193,482.18x = 290,335.32 × 81,152.40
  4. Step 4: Simplify right side
    193,482.18x = 23,561,408,022.77
  5. Step 5: Solve for x
    x = 23,561,408,022.77/193,482.18
  6. Step 6: Final answer
    x = 121,775.60

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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.