Home / 189,656.40-261,715.32-118,034.16

Finding the Fourth Proportional to 189,656.40, 261,715.32 and 118,034.16

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Solution

The fourth proportional to 189,656.40, 261,715.32 and 118,034.16 is: 162,880.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,656.40 : 261,715.32 = 118,034.16 : x
  2. Step 2: Convert to fraction form
    189,656.40/261,715.32 = 118,034.16/x
  3. Step 3: Cross multiply
    189,656.40x = 261,715.32 × 118,034.16
  4. Step 4: Simplify right side
    189,656.40x = 30,891,347,955.33
  5. Step 5: Solve for x
    x = 30,891,347,955.33/189,656.40
  6. Step 6: Final answer
    x = 162,880.60

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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.