Home / 180,719.10-249,393.83-100,147.95

Finding the Fourth Proportional to 180,719.10, 249,393.83 and 100,147.95

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Solution

The fourth proportional to 180,719.10, 249,393.83 and 100,147.95 is: 138,204.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,719.10 : 249,393.83 = 100,147.95 : x
  2. Step 2: Convert to fraction form
    180,719.10/249,393.83 = 100,147.95/x
  3. Step 3: Cross multiply
    180,719.10x = 249,393.83 × 100,147.95
  4. Step 4: Simplify right side
    180,719.10x = 24,976,280,316.41
  5. Step 5: Solve for x
    x = 24,976,280,316.41/180,719.10
  6. Step 6: Final answer
    x = 138,204.98

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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.