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Finding the Fourth Proportional to 111,495, 153,882.54 and 63,750.36

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Solution

The fourth proportional to 111,495, 153,882.54 and 63,750.36 is: 87,986.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,495 : 153,882.54 = 63,750.36 : x
  2. Step 2: Convert to fraction form
    111,495/153,882.54 = 63,750.36/x
  3. Step 3: Cross multiply
    111,495x = 153,882.54 × 63,750.36
  4. Step 4: Simplify right side
    111,495x = 9,810,067,322.71
  5. Step 5: Solve for x
    x = 9,810,067,322.71/111,495
  6. Step 6: Final answer
    x = 87,986.61

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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.