Home / 136,423.56-188,342.55-90,545.42

Finding the Fourth Proportional to 136,423.56, 188,342.55 and 90,545.42

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Solution

The fourth proportional to 136,423.56, 188,342.55 and 90,545.42 is: 125,004.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,423.56 : 188,342.55 = 90,545.42 : x
  2. Step 2: Convert to fraction form
    136,423.56/188,342.55 = 90,545.42/x
  3. Step 3: Cross multiply
    136,423.56x = 188,342.55 × 90,545.42
  4. Step 4: Simplify right side
    136,423.56x = 17,053,556,014.04
  5. Step 5: Solve for x
    x = 17,053,556,014.04/136,423.56
  6. Step 6: Final answer
    x = 125,004.47

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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.