Home / 156,768.72-216,271.44-93,069.60

Finding the Fourth Proportional to 156,768.72, 216,271.44 and 93,069.60

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Solution

The fourth proportional to 156,768.72, 216,271.44 and 93,069.60 is: 128,394.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,768.72 : 216,271.44 = 93,069.60 : x
  2. Step 2: Convert to fraction form
    156,768.72/216,271.44 = 93,069.60/x
  3. Step 3: Cross multiply
    156,768.72x = 216,271.44 × 93,069.60
  4. Step 4: Simplify right side
    156,768.72x = 20,128,296,412.22
  5. Step 5: Solve for x
    x = 20,128,296,412.22/156,768.72
  6. Step 6: Final answer
    x = 128,394.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.