Home / 191,926.80-287,890.20-86,950.80

Finding the Fourth Proportional to 191,926.80, 287,890.20 and 86,950.80

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Solution

The fourth proportional to 191,926.80, 287,890.20 and 86,950.80 is: 130,426.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,926.80 : 287,890.20 = 86,950.80 : x
  2. Step 2: Convert to fraction form
    191,926.80/287,890.20 = 86,950.80/x
  3. Step 3: Cross multiply
    191,926.80x = 287,890.20 × 86,950.80
  4. Step 4: Simplify right side
    191,926.80x = 25,032,283,202.16
  5. Step 5: Solve for x
    x = 25,032,283,202.16/191,926.80
  6. Step 6: Final answer
    x = 130,426.20

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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.