Home / 180,745.65-249,429.02-100,178.37

Finding the Fourth Proportional to 180,745.65, 249,429.02 and 100,178.37

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Solution

The fourth proportional to 180,745.65, 249,429.02 and 100,178.37 is: 138,246.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,745.65 : 249,429.02 = 100,178.37 : x
  2. Step 2: Convert to fraction form
    180,745.65/249,429.02 = 100,178.37/x
  3. Step 3: Cross multiply
    180,745.65x = 249,429.02 × 100,178.37
  4. Step 4: Simplify right side
    180,745.65x = 24,987,392,153.41
  5. Step 5: Solve for x
    x = 24,987,392,153.41/180,745.65
  6. Step 6: Final answer
    x = 138,246.16

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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.