Home / 111,526.84-153,886.98-63,128.44

Finding the Fourth Proportional to 111,526.84, 153,886.98 and 63,128.44

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Solution

The fourth proportional to 111,526.84, 153,886.98 and 63,128.44 is: 87,105.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,526.84 : 153,886.98 = 63,128.44 : x
  2. Step 2: Convert to fraction form
    111,526.84/153,886.98 = 63,128.44/x
  3. Step 3: Cross multiply
    111,526.84x = 153,886.98 × 63,128.44
  4. Step 4: Simplify right side
    111,526.84x = 9,714,644,983.71
  5. Step 5: Solve for x
    x = 9,714,644,983.71/111,526.84
  6. Step 6: Final answer
    x = 87,105.89

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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.