Home / 163,318.15-245,018.94-79,118.65

Finding the Fourth Proportional to 163,318.15, 245,018.94 and 79,118.65

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Solution

The fourth proportional to 163,318.15, 245,018.94 and 79,118.65 is: 118,698.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,318.15 : 245,018.94 = 79,118.65 : x
  2. Step 2: Convert to fraction form
    163,318.15/245,018.94 = 79,118.65/x
  3. Step 3: Cross multiply
    163,318.15x = 245,018.94 × 79,118.65
  4. Step 4: Simplify right side
    163,318.15x = 19,385,567,757.23
  5. Step 5: Solve for x
    x = 19,385,567,757.23/163,318.15
  6. Step 6: Final answer
    x = 118,698.18

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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.