Home / 212,989.52-293,915.64-122,281.63

Finding the Fourth Proportional to 212,989.52, 293,915.64 and 122,281.63

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Solution

The fourth proportional to 212,989.52, 293,915.64 and 122,281.63 is: 168,742.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,989.52 : 293,915.64 = 122,281.63 : x
  2. Step 2: Convert to fraction form
    212,989.52/293,915.64 = 122,281.63/x
  3. Step 3: Cross multiply
    212,989.52x = 293,915.64 × 122,281.63
  4. Step 4: Simplify right side
    212,989.52x = 35,940,483,541.69
  5. Step 5: Solve for x
    x = 35,940,483,541.69/212,989.52
  6. Step 6: Final answer
    x = 168,742.97

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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.