Home / 190,912.60-286,368.90-106,931.80

Finding the Fourth Proportional to 190,912.60, 286,368.90 and 106,931.80

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Solution

The fourth proportional to 190,912.60, 286,368.90 and 106,931.80 is: 160,397.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,912.60 : 286,368.90 = 106,931.80 : x
  2. Step 2: Convert to fraction form
    190,912.60/286,368.90 = 106,931.80/x
  3. Step 3: Cross multiply
    190,912.60x = 286,368.90 × 106,931.80
  4. Step 4: Simplify right side
    190,912.60x = 30,621,941,941.02
  5. Step 5: Solve for x
    x = 30,621,941,941.02/190,912.60
  6. Step 6: Final answer
    x = 160,397.70

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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.