Home / 212,015.41-292,598.63-127,130.65

Finding the Fourth Proportional to 212,015.41, 292,598.63 and 127,130.65

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Solution

The fourth proportional to 212,015.41, 292,598.63 and 127,130.65 is: 175,450.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,015.41 : 292,598.63 = 127,130.65 : x
  2. Step 2: Convert to fraction form
    212,015.41/292,598.63 = 127,130.65/x
  3. Step 3: Cross multiply
    212,015.41x = 292,598.63 × 127,130.65
  4. Step 4: Simplify right side
    212,015.41x = 37,198,253,130.60
  5. Step 5: Solve for x
    x = 37,198,253,130.60/212,015.41
  6. Step 6: Final answer
    x = 175,450.71

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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.