Home / 212,345.37-318,251.34-127,019.16

Finding the Fourth Proportional to 212,345.37, 318,251.34 and 127,019.16

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Solution

The fourth proportional to 212,345.37, 318,251.34 and 127,019.16 is: 190,369.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,345.37 : 318,251.34 = 127,019.16 : x
  2. Step 2: Convert to fraction form
    212,345.37/318,251.34 = 127,019.16/x
  3. Step 3: Cross multiply
    212,345.37x = 318,251.34 × 127,019.16
  4. Step 4: Simplify right side
    212,345.37x = 40,424,017,875.67
  5. Step 5: Solve for x
    x = 40,424,017,875.67/212,345.37
  6. Step 6: Final answer
    x = 190,369.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.