Home / 212,528.90-293,258.75-121,888.69

Finding the Fourth Proportional to 212,528.90, 293,258.75 and 121,888.69

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Solution

The fourth proportional to 212,528.90, 293,258.75 and 121,888.69 is: 168,188.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,528.90 : 293,258.75 = 121,888.69 : x
  2. Step 2: Convert to fraction form
    212,528.90/293,258.75 = 121,888.69/x
  3. Step 3: Cross multiply
    212,528.90x = 293,258.75 × 121,888.69
  4. Step 4: Simplify right side
    212,528.90x = 35,744,923,525.95
  5. Step 5: Solve for x
    x = 35,744,923,525.95/212,528.90
  6. Step 6: Final answer
    x = 168,188.53

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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.