Home / 105,283.22-145,290.60-59,961.20

Finding the Fourth Proportional to 105,283.22, 145,290.60 and 59,961.20

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Solution

The fourth proportional to 105,283.22, 145,290.60 and 59,961.20 is: 82,746.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,283.22 : 145,290.60 = 59,961.20 : x
  2. Step 2: Convert to fraction form
    105,283.22/145,290.60 = 59,961.20/x
  3. Step 3: Cross multiply
    105,283.22x = 145,290.60 × 59,961.20
  4. Step 4: Simplify right side
    105,283.22x = 8,711,797,998.27
  5. Step 5: Solve for x
    x = 8,711,797,998.27/105,283.22
  6. Step 6: Final answer
    x = 82,746.31

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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.