Home / 155,303.12-214,303.50-90,787.44

Finding the Fourth Proportional to 155,303.12, 214,303.50 and 90,787.44

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Solution

The fourth proportional to 155,303.12, 214,303.50 and 90,787.44 is: 125,278.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,303.12 : 214,303.50 = 90,787.44 : x
  2. Step 2: Convert to fraction form
    155,303.12/214,303.50 = 90,787.44/x
  3. Step 3: Cross multiply
    155,303.12x = 214,303.50 × 90,787.44
  4. Step 4: Simplify right side
    155,303.12x = 19,456,066,148.04
  5. Step 5: Solve for x
    x = 19,456,066,148.04/155,303.12
  6. Step 6: Final answer
    x = 125,278.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.