Home / 117,325.85-161,897.53-72,005.75

Finding the Fourth Proportional to 117,325.85, 161,897.53 and 72,005.75

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Solution

The fourth proportional to 117,325.85, 161,897.53 and 72,005.75 is: 99,360.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,325.85 : 161,897.53 = 72,005.75 : x
  2. Step 2: Convert to fraction form
    117,325.85/161,897.53 = 72,005.75/x
  3. Step 3: Cross multiply
    117,325.85x = 161,897.53 × 72,005.75
  4. Step 4: Simplify right side
    117,325.85x = 11,657,552,081.30
  5. Step 5: Solve for x
    x = 11,657,552,081.30/117,325.85
  6. Step 6: Final answer
    x = 99,360.47

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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.