Home / 122,280.60-168,675.56-76,886.64

Finding the Fourth Proportional to 122,280.60, 168,675.56 and 76,886.64

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Solution

The fourth proportional to 122,280.60, 168,675.56 and 76,886.64 is: 106,058.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,280.60 : 168,675.56 = 76,886.64 : x
  2. Step 2: Convert to fraction form
    122,280.60/168,675.56 = 76,886.64/x
  3. Step 3: Cross multiply
    122,280.60x = 168,675.56 × 76,886.64
  4. Step 4: Simplify right side
    122,280.60x = 12,968,897,058.52
  5. Step 5: Solve for x
    x = 12,968,897,058.52/122,280.60
  6. Step 6: Final answer
    x = 106,058.50

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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.