Home / 260,526.12-390,975.81-110,871.53

Finding the Fourth Proportional to 260,526.12, 390,975.81 and 110,871.53

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Solution

The fourth proportional to 260,526.12, 390,975.81 and 110,871.53 is: 166,386.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,526.12 : 390,975.81 = 110,871.53 : x
  2. Step 2: Convert to fraction form
    260,526.12/390,975.81 = 110,871.53/x
  3. Step 3: Cross multiply
    260,526.12x = 390,975.81 × 110,871.53
  4. Step 4: Simplify right side
    260,526.12x = 43,348,086,247.69
  5. Step 5: Solve for x
    x = 43,348,086,247.69/260,526.12
  6. Step 6: Final answer
    x = 166,386.72

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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.