Home / 180,927.27-249,709.53-100,380.72

Finding the Fourth Proportional to 180,927.27, 249,709.53 and 100,380.72

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Solution

The fourth proportional to 180,927.27, 249,709.53 and 100,380.72 is: 138,541.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,927.27 : 249,709.53 = 100,380.72 : x
  2. Step 2: Convert to fraction form
    180,927.27/249,709.53 = 100,380.72/x
  3. Step 3: Cross multiply
    180,927.27x = 249,709.53 × 100,380.72
  4. Step 4: Simplify right side
    180,927.27x = 25,066,022,412.26
  5. Step 5: Solve for x
    x = 25,066,022,412.26/180,927.27
  6. Step 6: Final answer
    x = 138,541.98

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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.