Home / 118,428.85-163,488.68-70,039.09

Finding the Fourth Proportional to 118,428.85, 163,488.68 and 70,039.09

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Solution

The fourth proportional to 118,428.85, 163,488.68 and 70,039.09 is: 96,687.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,428.85 : 163,488.68 = 70,039.09 : x
  2. Step 2: Convert to fraction form
    118,428.85/163,488.68 = 70,039.09/x
  3. Step 3: Cross multiply
    118,428.85x = 163,488.68 × 70,039.09
  4. Step 4: Simplify right side
    118,428.85x = 11,450,598,372.50
  5. Step 5: Solve for x
    x = 11,450,598,372.50/118,428.85
  6. Step 6: Final answer
    x = 96,687.58

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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.