Home / 114,150.12-157,516.56-66,402.78

Finding the Fourth Proportional to 114,150.12, 157,516.56 and 66,402.78

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Solution

The fourth proportional to 114,150.12, 157,516.56 and 66,402.78 is: 91,629.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,150.12 : 157,516.56 = 66,402.78 : x
  2. Step 2: Convert to fraction form
    114,150.12/157,516.56 = 66,402.78/x
  3. Step 3: Cross multiply
    114,150.12x = 157,516.56 × 66,402.78
  4. Step 4: Simplify right side
    114,150.12x = 10,459,537,480.04
  5. Step 5: Solve for x
    x = 10,459,537,480.04/114,150.12
  6. Step 6: Final answer
    x = 91,629.67

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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.