Home / 154,019.48-212,545.22-86,043.26

Finding the Fourth Proportional to 154,019.48, 212,545.22 and 86,043.26

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Solution

The fourth proportional to 154,019.48, 212,545.22 and 86,043.26 is: 118,738.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,019.48 : 212,545.22 = 86,043.26 : x
  2. Step 2: Convert to fraction form
    154,019.48/212,545.22 = 86,043.26/x
  3. Step 3: Cross multiply
    154,019.48x = 212,545.22 × 86,043.26
  4. Step 4: Simplify right side
    154,019.48x = 18,288,083,727.36
  5. Step 5: Solve for x
    x = 18,288,083,727.36/154,019.48
  6. Step 6: Final answer
    x = 118,738.77

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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.