Home / 117,036.18-161,466.36-76,772.28

Finding the Fourth Proportional to 117,036.18, 161,466.36 and 76,772.28

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Solution

The fourth proportional to 117,036.18, 161,466.36 and 76,772.28 is: 105,917.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,036.18 : 161,466.36 = 76,772.28 : x
  2. Step 2: Convert to fraction form
    117,036.18/161,466.36 = 76,772.28/x
  3. Step 3: Cross multiply
    117,036.18x = 161,466.36 × 76,772.28
  4. Step 4: Simplify right side
    117,036.18x = 12,396,140,600.50
  5. Step 5: Solve for x
    x = 12,396,140,600.50/117,036.18
  6. Step 6: Final answer
    x = 105,917.17

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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.