Home / 117,209.04-175,876.74-77,784.72

Finding the Fourth Proportional to 117,209.04, 175,876.74 and 77,784.72

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Solution

The fourth proportional to 117,209.04, 175,876.74 and 77,784.72 is: 116,719.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,209.04 : 175,876.74 = 77,784.72 : x
  2. Step 2: Convert to fraction form
    117,209.04/175,876.74 = 77,784.72/x
  3. Step 3: Cross multiply
    117,209.04x = 175,876.74 × 77,784.72
  4. Step 4: Simplify right side
    117,209.04x = 13,680,522,975.41
  5. Step 5: Solve for x
    x = 13,680,522,975.41/117,209.04
  6. Step 6: Final answer
    x = 116,719.01

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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.