Home / 212,014.02-318,036.60-78,894.27

Finding the Fourth Proportional to 212,014.02, 318,036.60 and 78,894.27

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Solution

The fourth proportional to 212,014.02, 318,036.60 and 78,894.27 is: 118,347.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,014.02 : 318,036.60 = 78,894.27 : x
  2. Step 2: Convert to fraction form
    212,014.02/318,036.60 = 78,894.27/x
  3. Step 3: Cross multiply
    212,014.02x = 318,036.60 × 78,894.27
  4. Step 4: Simplify right side
    212,014.02x = 25,091,265,390.28
  5. Step 5: Solve for x
    x = 25,091,265,390.28/212,014.02
  6. Step 6: Final answer
    x = 118,347.20

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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.