Home / 212,870.99-293,804.53-122,289.10

Finding the Fourth Proportional to 212,870.99, 293,804.53 and 122,289.10

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Solution

The fourth proportional to 212,870.99, 293,804.53 and 122,289.10 is: 168,783.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,870.99 : 293,804.53 = 122,289.10 : x
  2. Step 2: Convert to fraction form
    212,870.99/293,804.53 = 122,289.10/x
  3. Step 3: Cross multiply
    212,870.99x = 293,804.53 × 122,289.10
  4. Step 4: Simplify right side
    212,870.99x = 35,929,091,549.62
  5. Step 5: Solve for x
    x = 35,929,091,549.62/212,870.99
  6. Step 6: Final answer
    x = 168,783.41

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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.