Home / 99,039.75-136,675.08-56,598.18

Finding the Fourth Proportional to 99,039.75, 136,675.08 and 56,598.18

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Solution

The fourth proportional to 99,039.75, 136,675.08 and 56,598.18 is: 78,105.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,039.75 : 136,675.08 = 56,598.18 : x
  2. Step 2: Convert to fraction form
    99,039.75/136,675.08 = 56,598.18/x
  3. Step 3: Cross multiply
    99,039.75x = 136,675.08 × 56,598.18
  4. Step 4: Simplify right side
    99,039.75x = 7,735,560,779.35
  5. Step 5: Solve for x
    x = 7,735,560,779.35/99,039.75
  6. Step 6: Final answer
    x = 78,105.62

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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.