Home / 154,241.82-212,852.21-86,258.93

Finding the Fourth Proportional to 154,241.82, 212,852.21 and 86,258.93

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Solution

The fourth proportional to 154,241.82, 212,852.21 and 86,258.93 is: 119,036.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,241.82 : 212,852.21 = 86,258.93 : x
  2. Step 2: Convert to fraction form
    154,241.82/212,852.21 = 86,258.93/x
  3. Step 3: Cross multiply
    154,241.82x = 212,852.21 × 86,258.93
  4. Step 4: Simplify right side
    154,241.82x = 18,360,402,387.18
  5. Step 5: Solve for x
    x = 18,360,402,387.18/154,241.82
  6. Step 6: Final answer
    x = 119,036.47

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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.