Home / 118,783.20-163,934.64-68,484

Finding the Fourth Proportional to 118,783.20, 163,934.64 and 68,484

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Solution

The fourth proportional to 118,783.20, 163,934.64 and 68,484 is: 94,515.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,783.20 : 163,934.64 = 68,484 : x
  2. Step 2: Convert to fraction form
    118,783.20/163,934.64 = 68,484/x
  3. Step 3: Cross multiply
    118,783.20x = 163,934.64 × 68,484
  4. Step 4: Simplify right side
    118,783.20x = 11,226,899,885.76
  5. Step 5: Solve for x
    x = 11,226,899,885.76/118,783.20
  6. Step 6: Final answer
    x = 94,515.89

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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.