Home / 190,823.20-286,004.40-97,280.80

Finding the Fourth Proportional to 190,823.20, 286,004.40 and 97,280.80

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Solution

The fourth proportional to 190,823.20, 286,004.40 and 97,280.80 is: 145,803.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,823.20 : 286,004.40 = 97,280.80 : x
  2. Step 2: Convert to fraction form
    190,823.20/286,004.40 = 97,280.80/x
  3. Step 3: Cross multiply
    190,823.20x = 286,004.40 × 97,280.80
  4. Step 4: Simplify right side
    190,823.20x = 27,822,736,835.52
  5. Step 5: Solve for x
    x = 27,822,736,835.52/190,823.20
  6. Step 6: Final answer
    x = 145,803.74

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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.