Home / 99,556.70-137,298.04-65,964.38

Finding the Fourth Proportional to 99,556.70, 137,298.04 and 65,964.38

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Solution

The fourth proportional to 99,556.70, 137,298.04 and 65,964.38 is: 90,971.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,556.70 : 137,298.04 = 65,964.38 : x
  2. Step 2: Convert to fraction form
    99,556.70/137,298.04 = 65,964.38/x
  3. Step 3: Cross multiply
    99,556.70x = 137,298.04 × 65,964.38
  4. Step 4: Simplify right side
    99,556.70x = 9,056,779,232.41
  5. Step 5: Solve for x
    x = 9,056,779,232.41/99,556.70
  6. Step 6: Final answer
    x = 90,971.07

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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.