Home / 166,406.52-249,758.04-77,709.12

Finding the Fourth Proportional to 166,406.52, 249,758.04 and 77,709.12

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Solution

The fourth proportional to 166,406.52, 249,758.04 and 77,709.12 is: 116,632.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,406.52 : 249,758.04 = 77,709.12 : x
  2. Step 2: Convert to fraction form
    166,406.52/249,758.04 = 77,709.12/x
  3. Step 3: Cross multiply
    166,406.52x = 249,758.04 × 77,709.12
  4. Step 4: Simplify right side
    166,406.52x = 19,408,477,501.32
  5. Step 5: Solve for x
    x = 19,408,477,501.32/166,406.52
  6. Step 6: Final answer
    x = 116,632.91

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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.