Home / 212,911.57-319,312.86-63,116.84

Finding the Fourth Proportional to 212,911.57, 319,312.86 and 63,116.84

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Solution

The fourth proportional to 212,911.57, 319,312.86 and 63,116.84 is: 94,659.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,911.57 : 319,312.86 = 63,116.84 : x
  2. Step 2: Convert to fraction form
    212,911.57/319,312.86 = 63,116.84/x
  3. Step 3: Cross multiply
    212,911.57x = 319,312.86 × 63,116.84
  4. Step 4: Simplify right side
    212,911.57x = 20,154,018,694.56
  5. Step 5: Solve for x
    x = 20,154,018,694.56/212,911.57
  6. Step 6: Final answer
    x = 94,659.11

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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.