Home / 190,787.70-286,181.55-120,746.10

Finding the Fourth Proportional to 190,787.70, 286,181.55 and 120,746.10

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Solution

The fourth proportional to 190,787.70, 286,181.55 and 120,746.10 is: 181,119.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,787.70 : 286,181.55 = 120,746.10 : x
  2. Step 2: Convert to fraction form
    190,787.70/286,181.55 = 120,746.10/x
  3. Step 3: Cross multiply
    190,787.70x = 286,181.55 × 120,746.10
  4. Step 4: Simplify right side
    190,787.70x = 34,555,306,054.46
  5. Step 5: Solve for x
    x = 34,555,306,054.46/190,787.70
  6. Step 6: Final answer
    x = 181,119.15

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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.