Home / 122,799.60-169,570.80-77,558.40

Finding the Fourth Proportional to 122,799.60, 169,570.80 and 77,558.40

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Solution

The fourth proportional to 122,799.60, 169,570.80 and 77,558.40 is: 107,098.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,799.60 : 169,570.80 = 77,558.40 : x
  2. Step 2: Convert to fraction form
    122,799.60/169,570.80 = 77,558.40/x
  3. Step 3: Cross multiply
    122,799.60x = 169,570.80 × 77,558.40
  4. Step 4: Simplify right side
    122,799.60x = 13,151,639,934.72
  5. Step 5: Solve for x
    x = 13,151,639,934.72/122,799.60
  6. Step 6: Final answer
    x = 107,098.39

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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.