Home / 102,988.23-154,507.01-42,983.34

Finding the Fourth Proportional to 102,988.23, 154,507.01 and 42,983.34

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Solution

The fourth proportional to 102,988.23, 154,507.01 and 42,983.34 is: 64,485.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,988.23 : 154,507.01 = 42,983.34 : x
  2. Step 2: Convert to fraction form
    102,988.23/154,507.01 = 42,983.34/x
  3. Step 3: Cross multiply
    102,988.23x = 154,507.01 × 42,983.34
  4. Step 4: Simplify right side
    102,988.23x = 6,641,227,128.30
  5. Step 5: Solve for x
    x = 6,641,227,128.30/102,988.23
  6. Step 6: Final answer
    x = 64,485.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.