Home / 166,155.96-249,268.50-72,636.60

Finding the Fourth Proportional to 166,155.96, 249,268.50 and 72,636.60

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Solution

The fourth proportional to 166,155.96, 249,268.50 and 72,636.60 is: 108,970.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,155.96 : 249,268.50 = 72,636.60 : x
  2. Step 2: Convert to fraction form
    166,155.96/249,268.50 = 72,636.60/x
  3. Step 3: Cross multiply
    166,155.96x = 249,268.50 × 72,636.60
  4. Step 4: Simplify right side
    166,155.96x = 18,106,016,327.10
  5. Step 5: Solve for x
    x = 18,106,016,327.10/166,155.96
  6. Step 6: Final answer
    x = 108,970.01

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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.