Home / 129,006.12-193,421.34-65,670.60

Finding the Fourth Proportional to 129,006.12, 193,421.34 and 65,670.60

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Solution

The fourth proportional to 129,006.12, 193,421.34 and 65,670.60 is: 98,461.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,006.12 : 193,421.34 = 65,670.60 : x
  2. Step 2: Convert to fraction form
    129,006.12/193,421.34 = 65,670.60/x
  3. Step 3: Cross multiply
    129,006.12x = 193,421.34 × 65,670.60
  4. Step 4: Simplify right side
    129,006.12x = 12,702,095,450.60
  5. Step 5: Solve for x
    x = 12,702,095,450.60/129,006.12
  6. Step 6: Final answer
    x = 98,461.19

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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.