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Finding the Fourth Proportional to 180,616.40, 249,239.66 and 100,039.22

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Solution

The fourth proportional to 180,616.40, 249,239.66 and 100,039.22 is: 138,048.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,616.40 : 249,239.66 = 100,039.22 : x
  2. Step 2: Convert to fraction form
    180,616.40/249,239.66 = 100,039.22/x
  3. Step 3: Cross multiply
    180,616.40x = 249,239.66 × 100,039.22
  4. Step 4: Simplify right side
    180,616.40x = 24,933,739,433.07
  5. Step 5: Solve for x
    x = 24,933,739,433.07/180,616.40
  6. Step 6: Final answer
    x = 138,048.04

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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.