Home / 166,419.20-249,628.80-83,475.20

Finding the Fourth Proportional to 166,419.20, 249,628.80 and 83,475.20

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Solution

The fourth proportional to 166,419.20, 249,628.80 and 83,475.20 is: 125,212.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,419.20 : 249,628.80 = 83,475.20 : x
  2. Step 2: Convert to fraction form
    166,419.20/249,628.80 = 83,475.20/x
  3. Step 3: Cross multiply
    166,419.20x = 249,628.80 × 83,475.20
  4. Step 4: Simplify right side
    166,419.20x = 20,837,814,005.76
  5. Step 5: Solve for x
    x = 20,837,814,005.76/166,419.20
  6. Step 6: Final answer
    x = 125,212.80

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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.