Home / 118,405.89-163,402.48-64,694.23

Finding the Fourth Proportional to 118,405.89, 163,402.48 and 64,694.23

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Solution

The fourth proportional to 118,405.89, 163,402.48 and 64,694.23 is: 89,279.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,405.89 : 163,402.48 = 64,694.23 : x
  2. Step 2: Convert to fraction form
    118,405.89/163,402.48 = 64,694.23/x
  3. Step 3: Cross multiply
    118,405.89x = 163,402.48 × 64,694.23
  4. Step 4: Simplify right side
    118,405.89x = 10,571,197,623.69
  5. Step 5: Solve for x
    x = 10,571,197,623.69/118,405.89
  6. Step 6: Final answer
    x = 89,279.32

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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.