Home / 130,744.41-180,421.61-72,597.53

Finding the Fourth Proportional to 130,744.41, 180,421.61 and 72,597.53

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Solution

The fourth proportional to 130,744.41, 180,421.61 and 72,597.53 is: 100,181.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,744.41 : 180,421.61 = 72,597.53 : x
  2. Step 2: Convert to fraction form
    130,744.41/180,421.61 = 72,597.53/x
  3. Step 3: Cross multiply
    130,744.41x = 180,421.61 × 72,597.53
  4. Step 4: Simplify right side
    130,744.41x = 13,098,161,979.53
  5. Step 5: Solve for x
    x = 13,098,161,979.53/130,744.41
  6. Step 6: Final answer
    x = 100,181.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.