Home / 166,249.45-249,457.61-77,509.90

Finding the Fourth Proportional to 166,249.45, 249,457.61 and 77,509.90

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Solution

The fourth proportional to 166,249.45, 249,457.61 and 77,509.90 is: 116,303.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,249.45 : 249,457.61 = 77,509.90 : x
  2. Step 2: Convert to fraction form
    166,249.45/249,457.61 = 77,509.90/x
  3. Step 3: Cross multiply
    166,249.45x = 249,457.61 × 77,509.90
  4. Step 4: Simplify right side
    166,249.45x = 19,335,434,405.34
  5. Step 5: Solve for x
    x = 19,335,434,405.34/166,249.45
  6. Step 6: Final answer
    x = 116,303.75

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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.