Home / 134,678.89-200,830.19-128,056.62

Finding the Fourth Proportional to 134,678.89, 200,830.19 and 128,056.62

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Solution

The fourth proportional to 134,678.89, 200,830.19 and 128,056.62 is: 190,955.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,678.89 : 200,830.19 = 128,056.62 : x
  2. Step 2: Convert to fraction form
    134,678.89/200,830.19 = 128,056.62/x
  3. Step 3: Cross multiply
    134,678.89x = 200,830.19 × 128,056.62
  4. Step 4: Simplify right side
    134,678.89x = 25,717,635,325.36
  5. Step 5: Solve for x
    x = 25,717,635,325.36/134,678.89
  6. Step 6: Final answer
    x = 190,955.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.