Home / 166,015.98-249,023.16-77,220.54

Finding the Fourth Proportional to 166,015.98, 249,023.16 and 77,220.54

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Solution

The fourth proportional to 166,015.98, 249,023.16 and 77,220.54 is: 115,830.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,015.98 : 249,023.16 = 77,220.54 : x
  2. Step 2: Convert to fraction form
    166,015.98/249,023.16 = 77,220.54/x
  3. Step 3: Cross multiply
    166,015.98x = 249,023.16 × 77,220.54
  4. Step 4: Simplify right side
    166,015.98x = 19,229,702,887.71
  5. Step 5: Solve for x
    x = 19,229,702,887.71/166,015.98
  6. Step 6: Final answer
    x = 115,830.43

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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.