Home / 118,515.99-163,661.82-76,148.94

Finding the Fourth Proportional to 118,515.99, 163,661.82 and 76,148.94

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Solution

The fourth proportional to 118,515.99, 163,661.82 and 76,148.94 is: 105,156.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,515.99 : 163,661.82 = 76,148.94 : x
  2. Step 2: Convert to fraction form
    118,515.99/163,661.82 = 76,148.94/x
  3. Step 3: Cross multiply
    118,515.99x = 163,661.82 × 76,148.94
  4. Step 4: Simplify right side
    118,515.99x = 12,462,674,111.47
  5. Step 5: Solve for x
    x = 12,462,674,111.47/118,515.99
  6. Step 6: Final answer
    x = 105,156.06

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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.