Home / 113,128.09-169,763.60-63,240.91

Finding the Fourth Proportional to 113,128.09, 169,763.60 and 63,240.91

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Solution

The fourth proportional to 113,128.09, 169,763.60 and 63,240.91 is: 94,901.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,128.09 : 169,763.60 = 63,240.91 : x
  2. Step 2: Convert to fraction form
    113,128.09/169,763.60 = 63,240.91/x
  3. Step 3: Cross multiply
    113,128.09x = 169,763.60 × 63,240.91
  4. Step 4: Simplify right side
    113,128.09x = 10,736,003,808.26
  5. Step 5: Solve for x
    x = 10,736,003,808.26/113,128.09
  6. Step 6: Final answer
    x = 94,901.31

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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.