Home / 123,328.81-170,193.72-66,740.14

Finding the Fourth Proportional to 123,328.81, 170,193.72 and 66,740.14

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Solution

The fourth proportional to 123,328.81, 170,193.72 and 66,740.14 is: 92,101.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,328.81 : 170,193.72 = 66,740.14 : x
  2. Step 2: Convert to fraction form
    123,328.81/170,193.72 = 66,740.14/x
  3. Step 3: Cross multiply
    123,328.81x = 170,193.72 × 66,740.14
  4. Step 4: Simplify right side
    123,328.81x = 11,358,752,699.92
  5. Step 5: Solve for x
    x = 11,358,752,699.92/123,328.81
  6. Step 6: Final answer
    x = 92,101.37

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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.