Home / 180,853.66-249,573.81-100,280.44

Finding the Fourth Proportional to 180,853.66, 249,573.81 and 100,280.44

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Solution

The fourth proportional to 180,853.66, 249,573.81 and 100,280.44 is: 138,384.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,853.66 : 249,573.81 = 100,280.44 : x
  2. Step 2: Convert to fraction form
    180,853.66/249,573.81 = 100,280.44/x
  3. Step 3: Cross multiply
    180,853.66x = 249,573.81 × 100,280.44
  4. Step 4: Simplify right side
    180,853.66x = 25,027,371,479.28
  5. Step 5: Solve for x
    x = 25,027,371,479.28/180,853.66
  6. Step 6: Final answer
    x = 138,384.66

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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.