Home / 70,178.04-105,207.38-30,705.72

Finding the Fourth Proportional to 70,178.04, 105,207.38 and 30,705.72

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Solution

The fourth proportional to 70,178.04, 105,207.38 and 30,705.72 is: 46,032.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,178.04 : 105,207.38 = 30,705.72 : x
  2. Step 2: Convert to fraction form
    70,178.04/105,207.38 = 30,705.72/x
  3. Step 3: Cross multiply
    70,178.04x = 105,207.38 × 30,705.72
  4. Step 4: Simplify right side
    70,178.04x = 3,230,468,352.21
  5. Step 5: Solve for x
    x = 3,230,468,352.21/70,178.04
  6. Step 6: Final answer
    x = 46,032.47

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1.5x scale

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.