Home / 118,628.73-163,707.65-64,913.75

Finding the Fourth Proportional to 118,628.73, 163,707.65 and 64,913.75

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Solution

The fourth proportional to 118,628.73, 163,707.65 and 64,913.75 is: 89,580.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,628.73 : 163,707.65 = 64,913.75 : x
  2. Step 2: Convert to fraction form
    118,628.73/163,707.65 = 64,913.75/x
  3. Step 3: Cross multiply
    118,628.73x = 163,707.65 × 64,913.75
  4. Step 4: Simplify right side
    118,628.73x = 10,626,877,149.88
  5. Step 5: Solve for x
    x = 10,626,877,149.88/118,628.73
  6. Step 6: Final answer
    x = 89,580.97

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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.