Home / 147,811.04-203,979.43-84,148.75

Finding the Fourth Proportional to 147,811.04, 203,979.43 and 84,148.75

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Solution

The fourth proportional to 147,811.04, 203,979.43 and 84,148.75 is: 116,125.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,811.04 : 203,979.43 = 84,148.75 : x
  2. Step 2: Convert to fraction form
    147,811.04/203,979.43 = 84,148.75/x
  3. Step 3: Cross multiply
    147,811.04x = 203,979.43 × 84,148.75
  4. Step 4: Simplify right side
    147,811.04x = 17,164,614,060.21
  5. Step 5: Solve for x
    x = 17,164,614,060.21/147,811.04
  6. Step 6: Final answer
    x = 116,125.39

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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.