Home / 212,870.92-319,353.36-63,123.16

Finding the Fourth Proportional to 212,870.92, 319,353.36 and 63,123.16

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Solution

The fourth proportional to 212,870.92, 319,353.36 and 63,123.16 is: 94,698.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,870.92 : 319,353.36 = 63,123.16 : x
  2. Step 2: Convert to fraction form
    212,870.92/319,353.36 = 63,123.16/x
  3. Step 3: Cross multiply
    212,870.92x = 319,353.36 × 63,123.16
  4. Step 4: Simplify right side
    212,870.92x = 20,158,593,239.82
  5. Step 5: Solve for x
    x = 20,158,593,239.82/212,870.92
  6. Step 6: Final answer
    x = 94,698.67

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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.