Home / 113,836.90-170,820.15-78,801.70

Finding the Fourth Proportional to 113,836.90, 170,820.15 and 78,801.70

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Solution

The fourth proportional to 113,836.90, 170,820.15 and 78,801.70 is: 118,247.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,836.90 : 170,820.15 = 78,801.70 : x
  2. Step 2: Convert to fraction form
    113,836.90/170,820.15 = 78,801.70/x
  3. Step 3: Cross multiply
    113,836.90x = 170,820.15 × 78,801.70
  4. Step 4: Simplify right side
    113,836.90x = 13,460,918,214.26
  5. Step 5: Solve for x
    x = 13,460,918,214.26/113,836.90
  6. Step 6: Final answer
    x = 118,247.41

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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.