Home / 166,742.60-249,934.55-72,017.33

Finding the Fourth Proportional to 166,742.60, 249,934.55 and 72,017.33

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Solution

The fourth proportional to 166,742.60, 249,934.55 and 72,017.33 is: 107,948.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,742.60 : 249,934.55 = 72,017.33 : x
  2. Step 2: Convert to fraction form
    166,742.60/249,934.55 = 72,017.33/x
  3. Step 3: Cross multiply
    166,742.60x = 249,934.55 × 72,017.33
  4. Step 4: Simplify right side
    166,742.60x = 17,999,617,355.99
  5. Step 5: Solve for x
    x = 17,999,617,355.99/166,742.60
  6. Step 6: Final answer
    x = 107,948.53

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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.