Home / 190,836.10-286,254.15-155,406.70

Finding the Fourth Proportional to 190,836.10, 286,254.15 and 155,406.70

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Solution

The fourth proportional to 190,836.10, 286,254.15 and 155,406.70 is: 233,110.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,836.10 : 286,254.15 = 155,406.70 : x
  2. Step 2: Convert to fraction form
    190,836.10/286,254.15 = 155,406.70/x
  3. Step 3: Cross multiply
    190,836.10x = 286,254.15 × 155,406.70
  4. Step 4: Simplify right side
    190,836.10x = 44,485,812,812.81
  5. Step 5: Solve for x
    x = 44,485,812,812.81/190,836.10
  6. Step 6: Final answer
    x = 233,110.05

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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.