Home / 190,870.40-286,305.60-134,883.20

Finding the Fourth Proportional to 190,870.40, 286,305.60 and 134,883.20

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Solution

The fourth proportional to 190,870.40, 286,305.60 and 134,883.20 is: 202,324.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,870.40 : 286,305.60 = 134,883.20 : x
  2. Step 2: Convert to fraction form
    190,870.40/286,305.60 = 134,883.20/x
  3. Step 3: Cross multiply
    190,870.40x = 286,305.60 × 134,883.20
  4. Step 4: Simplify right side
    190,870.40x = 38,617,815,505.92
  5. Step 5: Solve for x
    x = 38,617,815,505.92/190,870.40
  6. Step 6: Final answer
    x = 202,324.80

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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.