Home / 154,111.12-212,614.73-113,921.35

Finding the Fourth Proportional to 154,111.12, 212,614.73 and 113,921.35

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Solution

The fourth proportional to 154,111.12, 212,614.73 and 113,921.35 is: 157,168.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,111.12 : 212,614.73 = 113,921.35 : x
  2. Step 2: Convert to fraction form
    154,111.12/212,614.73 = 113,921.35/x
  3. Step 3: Cross multiply
    154,111.12x = 212,614.73 × 113,921.35
  4. Step 4: Simplify right side
    154,111.12x = 24,221,357,071.49
  5. Step 5: Solve for x
    x = 24,221,357,071.49/154,111.12
  6. Step 6: Final answer
    x = 157,168.13

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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.