Home / 212,783.10-293,639.15-117,289.64

Finding the Fourth Proportional to 212,783.10, 293,639.15 and 117,289.64

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Solution

The fourth proportional to 212,783.10, 293,639.15 and 117,289.64 is: 161,858.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,783.10 : 293,639.15 = 117,289.64 : x
  2. Step 2: Convert to fraction form
    212,783.10/293,639.15 = 117,289.64/x
  3. Step 3: Cross multiply
    212,783.10x = 293,639.15 × 117,289.64
  4. Step 4: Simplify right side
    212,783.10x = 34,440,829,018.43
  5. Step 5: Solve for x
    x = 34,440,829,018.43/212,783.10
  6. Step 6: Final answer
    x = 161,858.86

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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.