Home / 117,160.29-161,681.28-63,445.37

Finding the Fourth Proportional to 117,160.29, 161,681.28 and 63,445.37

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Solution

The fourth proportional to 117,160.29, 161,681.28 and 63,445.37 is: 87,554.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,160.29 : 161,681.28 = 63,445.37 : x
  2. Step 2: Convert to fraction form
    117,160.29/161,681.28 = 63,445.37/x
  3. Step 3: Cross multiply
    117,160.29x = 161,681.28 × 63,445.37
  4. Step 4: Simplify right side
    117,160.29x = 10,257,927,823.27
  5. Step 5: Solve for x
    x = 10,257,927,823.27/117,160.29
  6. Step 6: Final answer
    x = 87,554.65

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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.