Home / 199,545.10-275,300.09-153,618.78

Finding the Fourth Proportional to 199,545.10, 275,300.09 and 153,618.78

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Solution

The fourth proportional to 199,545.10, 275,300.09 and 153,618.78 is: 211,938.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,545.10 : 275,300.09 = 153,618.78 : x
  2. Step 2: Convert to fraction form
    199,545.10/275,300.09 = 153,618.78/x
  3. Step 3: Cross multiply
    199,545.10x = 275,300.09 × 153,618.78
  4. Step 4: Simplify right side
    199,545.10x = 42,291,263,959.69
  5. Step 5: Solve for x
    x = 42,291,263,959.69/199,545.10
  6. Step 6: Final answer
    x = 211,938.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.