Home / 154,362.84-212,816.52-111,306.30

Finding the Fourth Proportional to 154,362.84, 212,816.52 and 111,306.30

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Solution

The fourth proportional to 154,362.84, 212,816.52 and 111,306.30 is: 153,455.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,362.84 : 212,816.52 = 111,306.30 : x
  2. Step 2: Convert to fraction form
    154,362.84/212,816.52 = 111,306.30/x
  3. Step 3: Cross multiply
    154,362.84x = 212,816.52 × 111,306.30
  4. Step 4: Simplify right side
    154,362.84x = 23,687,819,420.08
  5. Step 5: Solve for x
    x = 23,687,819,420.08/154,362.84
  6. Step 6: Final answer
    x = 153,455.45

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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.