Home / 315,977.40-474,030.90-105,766.20

Finding the Fourth Proportional to 315,977.40, 474,030.90 and 105,766.20

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Solution

The fourth proportional to 315,977.40, 474,030.90 and 105,766.20 is: 158,670.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,977.40 : 474,030.90 = 105,766.20 : x
  2. Step 2: Convert to fraction form
    315,977.40/474,030.90 = 105,766.20/x
  3. Step 3: Cross multiply
    315,977.40x = 474,030.90 × 105,766.20
  4. Step 4: Simplify right side
    315,977.40x = 50,136,446,975.58
  5. Step 5: Solve for x
    x = 50,136,446,975.58/315,977.40
  6. Step 6: Final answer
    x = 158,670.99

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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.