Home / 113,009.07-155,959.53-74,702.17

Finding the Fourth Proportional to 113,009.07, 155,959.53 and 74,702.17

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Solution

The fourth proportional to 113,009.07, 155,959.53 and 74,702.17 is: 103,093.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,009.07 : 155,959.53 = 74,702.17 : x
  2. Step 2: Convert to fraction form
    113,009.07/155,959.53 = 74,702.17/x
  3. Step 3: Cross multiply
    113,009.07x = 155,959.53 × 74,702.17
  4. Step 4: Simplify right side
    113,009.07x = 11,650,515,676.63
  5. Step 5: Solve for x
    x = 11,650,515,676.63/113,009.07
  6. Step 6: Final answer
    x = 103,093.63

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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.