Home / 118,671.63-163,944.72-77,932.41

Finding the Fourth Proportional to 118,671.63, 163,944.72 and 77,932.41

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Solution

The fourth proportional to 118,671.63, 163,944.72 and 77,932.41 is: 107,663.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,671.63 : 163,944.72 = 77,932.41 : x
  2. Step 2: Convert to fraction form
    118,671.63/163,944.72 = 77,932.41/x
  3. Step 3: Cross multiply
    118,671.63x = 163,944.72 × 77,932.41
  4. Step 4: Simplify right side
    118,671.63x = 12,776,607,136.38
  5. Step 5: Solve for x
    x = 12,776,607,136.38/118,671.63
  6. Step 6: Final answer
    x = 107,663.53

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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.