Home / 208,150.40-311,995.20-89,801.60

Finding the Fourth Proportional to 208,150.40, 311,995.20 and 89,801.60

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Solution

The fourth proportional to 208,150.40, 311,995.20 and 89,801.60 is: 134,603.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,150.40 : 311,995.20 = 89,801.60 : x
  2. Step 2: Convert to fraction form
    208,150.40/311,995.20 = 89,801.60/x
  3. Step 3: Cross multiply
    208,150.40x = 311,995.20 × 89,801.60
  4. Step 4: Simplify right side
    208,150.40x = 28,017,668,152.32
  5. Step 5: Solve for x
    x = 28,017,668,152.32/208,150.40
  6. Step 6: Final answer
    x = 134,603.00

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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.