Home / 102,984.48-154,501.38-42,979.59

Finding the Fourth Proportional to 102,984.48, 154,501.38 and 42,979.59

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Solution

The fourth proportional to 102,984.48, 154,501.38 and 42,979.59 is: 64,479.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,984.48 : 154,501.38 = 42,979.59 : x
  2. Step 2: Convert to fraction form
    102,984.48/154,501.38 = 42,979.59/x
  3. Step 3: Cross multiply
    102,984.48x = 154,501.38 × 42,979.59
  4. Step 4: Simplify right side
    102,984.48x = 6,640,405,966.83
  5. Step 5: Solve for x
    x = 6,640,405,966.83/102,984.48
  6. Step 6: Final answer
    x = 64,479.68

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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.