Home / 127,784.16-176,170.08-89,492.16

Finding the Fourth Proportional to 127,784.16, 176,170.08 and 89,492.16

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Solution

The fourth proportional to 127,784.16, 176,170.08 and 89,492.16 is: 123,378.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,784.16 : 176,170.08 = 89,492.16 : x
  2. Step 2: Convert to fraction form
    127,784.16/176,170.08 = 89,492.16/x
  3. Step 3: Cross multiply
    127,784.16x = 176,170.08 × 89,492.16
  4. Step 4: Simplify right side
    127,784.16x = 15,765,840,986.57
  5. Step 5: Solve for x
    x = 15,765,840,986.57/127,784.16
  6. Step 6: Final answer
    x = 123,378.68

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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.