Home / 212,605.12-293,408.44-117,111.76

Finding the Fourth Proportional to 212,605.12, 293,408.44 and 117,111.76

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Solution

The fourth proportional to 212,605.12, 293,408.44 and 117,111.76 is: 161,621.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,605.12 : 293,408.44 = 117,111.76 : x
  2. Step 2: Convert to fraction form
    212,605.12/293,408.44 = 117,111.76/x
  3. Step 3: Cross multiply
    212,605.12x = 293,408.44 × 117,111.76
  4. Step 4: Simplify right side
    212,605.12x = 34,361,578,807.25
  5. Step 5: Solve for x
    x = 34,361,578,807.25/212,605.12
  6. Step 6: Final answer
    x = 161,621.60

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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.