Home / 114,639.26-172,075.53-77,081.18

Finding the Fourth Proportional to 114,639.26, 172,075.53 and 77,081.18

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Solution

The fourth proportional to 114,639.26, 172,075.53 and 77,081.18 is: 115,700.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,639.26 : 172,075.53 = 77,081.18 : x
  2. Step 2: Convert to fraction form
    114,639.26/172,075.53 = 77,081.18/x
  3. Step 3: Cross multiply
    114,639.26x = 172,075.53 × 77,081.18
  4. Step 4: Simplify right side
    114,639.26x = 13,263,784,901.53
  5. Step 5: Solve for x
    x = 13,263,784,901.53/114,639.26
  6. Step 6: Final answer
    x = 115,700.20

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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.