Home / 154,255.04-212,870.40-97,712.80

Finding the Fourth Proportional to 154,255.04, 212,870.40 and 97,712.80

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Solution

The fourth proportional to 154,255.04, 212,870.40 and 97,712.80 is: 134,842.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,255.04 : 212,870.40 = 97,712.80 : x
  2. Step 2: Convert to fraction form
    154,255.04/212,870.40 = 97,712.80/x
  3. Step 3: Cross multiply
    154,255.04x = 212,870.40 × 97,712.80
  4. Step 4: Simplify right side
    154,255.04x = 20,800,162,821.12
  5. Step 5: Solve for x
    x = 20,800,162,821.12/154,255.04
  6. Step 6: Final answer
    x = 134,842.68

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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.