Home / 118,414.90-163,410.64-64,698.76

Finding the Fourth Proportional to 118,414.90, 163,410.64 and 64,698.76

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Solution

The fourth proportional to 118,414.90, 163,410.64 and 64,698.76 is: 89,283.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,414.90 : 163,410.64 = 64,698.76 : x
  2. Step 2: Convert to fraction form
    118,414.90/163,410.64 = 64,698.76/x
  3. Step 3: Cross multiply
    118,414.90x = 163,410.64 × 64,698.76
  4. Step 4: Simplify right side
    118,414.90x = 10,572,465,778.81
  5. Step 5: Solve for x
    x = 10,572,465,778.81/118,414.90
  6. Step 6: Final answer
    x = 89,283.24

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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.