Home / 174,013.10-261,019.65-85,439.60

Finding the Fourth Proportional to 174,013.10, 261,019.65 and 85,439.60

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Solution

The fourth proportional to 174,013.10, 261,019.65 and 85,439.60 is: 128,159.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,013.10 : 261,019.65 = 85,439.60 : x
  2. Step 2: Convert to fraction form
    174,013.10/261,019.65 = 85,439.60/x
  3. Step 3: Cross multiply
    174,013.10x = 261,019.65 × 85,439.60
  4. Step 4: Simplify right side
    174,013.10x = 22,301,414,488.14
  5. Step 5: Solve for x
    x = 22,301,414,488.14/174,013.10
  6. Step 6: Final answer
    x = 128,159.40

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1.5x scale

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.