Home / 118,110.09-162,989.73-64,395.57

Finding the Fourth Proportional to 118,110.09, 162,989.73 and 64,395.57

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Solution

The fourth proportional to 118,110.09, 162,989.73 and 64,395.57 is: 88,864.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,110.09 : 162,989.73 = 64,395.57 : x
  2. Step 2: Convert to fraction form
    118,110.09/162,989.73 = 64,395.57/x
  3. Step 3: Cross multiply
    118,110.09x = 162,989.73 × 64,395.57
  4. Step 4: Simplify right side
    118,110.09x = 10,495,816,567.50
  5. Step 5: Solve for x
    x = 10,495,816,567.50/118,110.09
  6. Step 6: Final answer
    x = 88,864.69

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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.