Home / 212,813.83-293,683.10-122,175.68

Finding the Fourth Proportional to 212,813.83, 293,683.10 and 122,175.68

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Solution

The fourth proportional to 212,813.83, 293,683.10 and 122,175.68 is: 168,602.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,813.83 : 293,683.10 = 122,175.68 : x
  2. Step 2: Convert to fraction form
    212,813.83/293,683.10 = 122,175.68/x
  3. Step 3: Cross multiply
    212,813.83x = 293,683.10 × 122,175.68
  4. Step 4: Simplify right side
    212,813.83x = 35,880,931,054.95
  5. Step 5: Solve for x
    x = 35,880,931,054.95/212,813.83
  6. Step 6: Final answer
    x = 168,602.44

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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.