Home / 113,221.51-169,878.39-57,077.80

Finding the Fourth Proportional to 113,221.51, 169,878.39 and 57,077.80

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Solution

The fourth proportional to 113,221.51, 169,878.39 and 57,077.80 is: 85,639.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,221.51 : 169,878.39 = 57,077.80 : x
  2. Step 2: Convert to fraction form
    113,221.51/169,878.39 = 57,077.80/x
  3. Step 3: Cross multiply
    113,221.51x = 169,878.39 × 57,077.80
  4. Step 4: Simplify right side
    113,221.51x = 9,696,284,768.74
  5. Step 5: Solve for x
    x = 9,696,284,768.74/113,221.51
  6. Step 6: Final answer
    x = 85,639.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.