Home / 166,521.93-249,864.91-77,762.54

Finding the Fourth Proportional to 166,521.93, 249,864.91 and 77,762.54

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Solution

The fourth proportional to 166,521.93, 249,864.91 and 77,762.54 is: 116,682.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,521.93 : 249,864.91 = 77,762.54 : x
  2. Step 2: Convert to fraction form
    166,521.93/249,864.91 = 77,762.54/x
  3. Step 3: Cross multiply
    166,521.93x = 249,864.91 × 77,762.54
  4. Step 4: Simplify right side
    166,521.93x = 19,430,129,989.15
  5. Step 5: Solve for x
    x = 19,430,129,989.15/166,521.93
  6. Step 6: Final answer
    x = 116,682.11

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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.