Home / 212,729.68-318,793.64-118,001.60

Finding the Fourth Proportional to 212,729.68, 318,793.64 and 118,001.60

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Solution

The fourth proportional to 212,729.68, 318,793.64 and 118,001.60 is: 176,835.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,729.68 : 318,793.64 = 118,001.60 : x
  2. Step 2: Convert to fraction form
    212,729.68/318,793.64 = 118,001.60/x
  3. Step 3: Cross multiply
    212,729.68x = 318,793.64 × 118,001.60
  4. Step 4: Simplify right side
    212,729.68x = 37,618,159,589.82
  5. Step 5: Solve for x
    x = 37,618,159,589.82/212,729.68
  6. Step 6: Final answer
    x = 176,835.50

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1.5x scale

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.