Home / 118,672.63-163,946.10-77,933.41

Finding the Fourth Proportional to 118,672.63, 163,946.10 and 77,933.41

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Solution

The fourth proportional to 118,672.63, 163,946.10 and 77,933.41 is: 107,664.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,672.63 : 163,946.10 = 77,933.41 : x
  2. Step 2: Convert to fraction form
    118,672.63/163,946.10 = 77,933.41/x
  3. Step 3: Cross multiply
    118,672.63x = 163,946.10 × 77,933.41
  4. Step 4: Simplify right side
    118,672.63x = 12,776,878,629.20
  5. Step 5: Solve for x
    x = 12,776,878,629.20/118,672.63
  6. Step 6: Final answer
    x = 107,664.92

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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.