Home / 112,582.80-155,338.56-64,827.36

Finding the Fourth Proportional to 112,582.80, 155,338.56 and 64,827.36

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Solution

The fourth proportional to 112,582.80, 155,338.56 and 64,827.36 is: 89,446.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,582.80 : 155,338.56 = 64,827.36 : x
  2. Step 2: Convert to fraction form
    112,582.80/155,338.56 = 64,827.36/x
  3. Step 3: Cross multiply
    112,582.80x = 155,338.56 × 64,827.36
  4. Step 4: Simplify right side
    112,582.80x = 10,070,188,751.00
  5. Step 5: Solve for x
    x = 10,070,188,751.00/112,582.80
  6. Step 6: Final answer
    x = 89,446.96

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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.