Home / 180,716.11-249,389.71-100,144.98

Finding the Fourth Proportional to 180,716.11, 249,389.71 and 100,144.98

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Solution

The fourth proportional to 180,716.11, 249,389.71 and 100,144.98 is: 138,200.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,716.11 : 249,389.71 = 100,144.98 : x
  2. Step 2: Convert to fraction form
    180,716.11/249,389.71 = 100,144.98/x
  3. Step 3: Cross multiply
    180,716.11x = 249,389.71 × 100,144.98
  4. Step 4: Simplify right side
    180,716.11x = 24,975,127,269.79
  5. Step 5: Solve for x
    x = 24,975,127,269.79/180,716.11
  6. Step 6: Final answer
    x = 138,200.89

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1.5x scale

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.