Home / 190,210.88-285,209.60-130,307.04

Finding the Fourth Proportional to 190,210.88, 285,209.60 and 130,307.04

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Solution

The fourth proportional to 190,210.88, 285,209.60 and 130,307.04 is: 195,387.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,210.88 : 285,209.60 = 130,307.04 : x
  2. Step 2: Convert to fraction form
    190,210.88/285,209.60 = 130,307.04/x
  3. Step 3: Cross multiply
    190,210.88x = 285,209.60 × 130,307.04
  4. Step 4: Simplify right side
    190,210.88x = 37,164,818,755.58
  5. Step 5: Solve for x
    x = 37,164,818,755.58/190,210.88
  6. Step 6: Final answer
    x = 195,387.45

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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.