Home / 118,687.84-163,736.88-70,917.28

Finding the Fourth Proportional to 118,687.84, 163,736.88 and 70,917.28

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Solution

The fourth proportional to 118,687.84, 163,736.88 and 70,917.28 is: 97,834.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,687.84 : 163,736.88 = 70,917.28 : x
  2. Step 2: Convert to fraction form
    118,687.84/163,736.88 = 70,917.28/x
  3. Step 3: Cross multiply
    118,687.84x = 163,736.88 × 70,917.28
  4. Step 4: Simplify right side
    118,687.84x = 11,611,774,165.29
  5. Step 5: Solve for x
    x = 11,611,774,165.29/118,687.84
  6. Step 6: Final answer
    x = 97,834.57

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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.