Home / 111,154.18-153,407.38-63,396.58

Finding the Fourth Proportional to 111,154.18, 153,407.38 and 63,396.58

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Solution

The fourth proportional to 111,154.18, 153,407.38 and 63,396.58 is: 87,495.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,154.18 : 153,407.38 = 63,396.58 : x
  2. Step 2: Convert to fraction form
    111,154.18/153,407.38 = 63,396.58/x
  3. Step 3: Cross multiply
    111,154.18x = 153,407.38 × 63,396.58
  4. Step 4: Simplify right side
    111,154.18x = 9,725,503,238.76
  5. Step 5: Solve for x
    x = 9,725,503,238.76/111,154.18
  6. Step 6: Final answer
    x = 87,495.61

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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.