Home / 118,575.44-163,638.17-64,860.45

Finding the Fourth Proportional to 118,575.44, 163,638.17 and 64,860.45

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Solution

The fourth proportional to 118,575.44, 163,638.17 and 64,860.45 is: 89,509.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,575.44 : 163,638.17 = 64,860.45 : x
  2. Step 2: Convert to fraction form
    118,575.44/163,638.17 = 64,860.45/x
  3. Step 3: Cross multiply
    118,575.44x = 163,638.17 × 64,860.45
  4. Step 4: Simplify right side
    118,575.44x = 10,613,645,013.50
  5. Step 5: Solve for x
    x = 10,613,645,013.50/118,575.44
  6. Step 6: Final answer
    x = 89,509.64

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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.