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Finding the Fourth Proportional to 106,912.20, 160,368.30 and 28,034.40

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Solution

The fourth proportional to 106,912.20, 160,368.30 and 28,034.40 is: 42,051.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,912.20 : 160,368.30 = 28,034.40 : x
  2. Step 2: Convert to fraction form
    106,912.20/160,368.30 = 28,034.40/x
  3. Step 3: Cross multiply
    106,912.20x = 160,368.30 × 28,034.40
  4. Step 4: Simplify right side
    106,912.20x = 4,495,829,069.52
  5. Step 5: Solve for x
    x = 4,495,829,069.52/106,912.20
  6. Step 6: Final answer
    x = 42,051.60

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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.