Home / 212,964.20-293,985.06-137,549.48

Finding the Fourth Proportional to 212,964.20, 293,985.06 and 137,549.48

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Solution

The fourth proportional to 212,964.20, 293,985.06 and 137,549.48 is: 189,879.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,964.20 : 293,985.06 = 137,549.48 : x
  2. Step 2: Convert to fraction form
    212,964.20/293,985.06 = 137,549.48/x
  3. Step 3: Cross multiply
    212,964.20x = 293,985.06 × 137,549.48
  4. Step 4: Simplify right side
    212,964.20x = 40,437,492,130.77
  5. Step 5: Solve for x
    x = 40,437,492,130.77/212,964.20
  6. Step 6: Final answer
    x = 189,879.29

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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.