Home / 113,278.36-156,319.80-62,980.60

Finding the Fourth Proportional to 113,278.36, 156,319.80 and 62,980.60

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Solution

The fourth proportional to 113,278.36, 156,319.80 and 62,980.60 is: 86,910.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,278.36 : 156,319.80 = 62,980.60 : x
  2. Step 2: Convert to fraction form
    113,278.36/156,319.80 = 62,980.60/x
  3. Step 3: Cross multiply
    113,278.36x = 156,319.80 × 62,980.60
  4. Step 4: Simplify right side
    113,278.36x = 9,845,114,795.88
  5. Step 5: Solve for x
    x = 9,845,114,795.88/113,278.36
  6. Step 6: Final answer
    x = 86,910.82

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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.