Home / 191,788.30-287,791.80-132,666.40

Finding the Fourth Proportional to 191,788.30, 287,791.80 and 132,666.40

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Solution

The fourth proportional to 191,788.30, 287,791.80 and 132,666.40 is: 199,075.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,788.30 : 287,791.80 = 132,666.40 : x
  2. Step 2: Convert to fraction form
    191,788.30/287,791.80 = 132,666.40/x
  3. Step 3: Cross multiply
    191,788.30x = 287,791.80 × 132,666.40
  4. Step 4: Simplify right side
    191,788.30x = 38,180,302,055.52
  5. Step 5: Solve for x
    x = 38,180,302,055.52/191,788.30
  6. Step 6: Final answer
    x = 199,075.24

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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.