Home / 127,309.20-190,963.80-97,875.60

Finding the Fourth Proportional to 127,309.20, 190,963.80 and 97,875.60

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Solution

The fourth proportional to 127,309.20, 190,963.80 and 97,875.60 is: 146,813.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,309.20 : 190,963.80 = 97,875.60 : x
  2. Step 2: Convert to fraction form
    127,309.20/190,963.80 = 97,875.60/x
  3. Step 3: Cross multiply
    127,309.20x = 190,963.80 × 97,875.60
  4. Step 4: Simplify right side
    127,309.20x = 18,690,696,503.28
  5. Step 5: Solve for x
    x = 18,690,696,503.28/127,309.20
  6. Step 6: Final answer
    x = 146,813.40

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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.