Home / 105,627.36-157,340.40-100,017.60

Finding the Fourth Proportional to 105,627.36, 157,340.40 and 100,017.60

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Solution

The fourth proportional to 105,627.36, 157,340.40 and 100,017.60 is: 148,984.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,627.36 : 157,340.40 = 100,017.60 : x
  2. Step 2: Convert to fraction form
    105,627.36/157,340.40 = 100,017.60/x
  3. Step 3: Cross multiply
    105,627.36x = 157,340.40 × 100,017.60
  4. Step 4: Simplify right side
    105,627.36x = 15,736,809,191.04
  5. Step 5: Solve for x
    x = 15,736,809,191.04/105,627.36
  6. Step 6: Final answer
    x = 148,984.21

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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.