Home / 154,607.32-213,263.80-102,219.11

Finding the Fourth Proportional to 154,607.32, 213,263.80 and 102,219.11

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Solution

The fourth proportional to 154,607.32, 213,263.80 and 102,219.11 is: 141,000.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,607.32 : 213,263.80 = 102,219.11 : x
  2. Step 2: Convert to fraction form
    154,607.32/213,263.80 = 102,219.11/x
  3. Step 3: Cross multiply
    154,607.32x = 213,263.80 × 102,219.11
  4. Step 4: Simplify right side
    154,607.32x = 21,799,635,309.09
  5. Step 5: Solve for x
    x = 21,799,635,309.09/154,607.32
  6. Step 6: Final answer
    x = 141,000.02

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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.