Home / 166,039.05-249,242.96-86,055.60

Finding the Fourth Proportional to 166,039.05, 249,242.96 and 86,055.60

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Solution

The fourth proportional to 166,039.05, 249,242.96 and 86,055.60 is: 129,178.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,039.05 : 249,242.96 = 86,055.60 : x
  2. Step 2: Convert to fraction form
    166,039.05/249,242.96 = 86,055.60/x
  3. Step 3: Cross multiply
    166,039.05x = 249,242.96 × 86,055.60
  4. Step 4: Simplify right side
    166,039.05x = 21,448,752,038.30
  5. Step 5: Solve for x
    x = 21,448,752,038.30/166,039.05
  6. Step 6: Final answer
    x = 129,178.96

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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.