Home / 190,890.60-286,368.30-57,769.80

Finding the Fourth Proportional to 190,890.60, 286,368.30 and 57,769.80

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Solution

The fourth proportional to 190,890.60, 286,368.30 and 57,769.80 is: 86,664.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,890.60 : 286,368.30 = 57,769.80 : x
  2. Step 2: Convert to fraction form
    190,890.60/286,368.30 = 57,769.80/x
  3. Step 3: Cross multiply
    190,890.60x = 286,368.30 × 57,769.80
  4. Step 4: Simplify right side
    190,890.60x = 16,543,439,417.34
  5. Step 5: Solve for x
    x = 16,543,439,417.34/190,890.60
  6. Step 6: Final answer
    x = 86,664.51

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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.