Home / 115,066.10-172,378.02-70,563.08

Finding the Fourth Proportional to 115,066.10, 172,378.02 and 70,563.08

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Solution

The fourth proportional to 115,066.10, 172,378.02 and 70,563.08 is: 105,709.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,066.10 : 172,378.02 = 70,563.08 : x
  2. Step 2: Convert to fraction form
    115,066.10/172,378.02 = 70,563.08/x
  3. Step 3: Cross multiply
    115,066.10x = 172,378.02 × 70,563.08
  4. Step 4: Simplify right side
    115,066.10x = 12,163,524,015.50
  5. Step 5: Solve for x
    x = 12,163,524,015.50/115,066.10
  6. Step 6: Final answer
    x = 105,709.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.