Home / 190,837.36-286,255.80-72,480.40

Finding the Fourth Proportional to 190,837.36, 286,255.80 and 72,480.40

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Solution

The fourth proportional to 190,837.36, 286,255.80 and 72,480.40 is: 108,720.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,837.36 : 286,255.80 = 72,480.40 : x
  2. Step 2: Convert to fraction form
    190,837.36/286,255.80 = 72,480.40/x
  3. Step 3: Cross multiply
    190,837.36x = 286,255.80 × 72,480.40
  4. Step 4: Simplify right side
    190,837.36x = 20,747,934,886.32
  5. Step 5: Solve for x
    x = 20,747,934,886.32/190,837.36
  6. Step 6: Final answer
    x = 108,720.51

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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.