Home / 122,319.48-168,806.57-76,406.32

Finding the Fourth Proportional to 122,319.48, 168,806.57 and 76,406.32

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Solution

The fourth proportional to 122,319.48, 168,806.57 and 76,406.32 is: 105,444.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,319.48 : 168,806.57 = 76,406.32 : x
  2. Step 2: Convert to fraction form
    122,319.48/168,806.57 = 76,406.32/x
  3. Step 3: Cross multiply
    122,319.48x = 168,806.57 × 76,406.32
  4. Step 4: Simplify right side
    122,319.48x = 12,897,888,001.47
  5. Step 5: Solve for x
    x = 12,897,888,001.47/122,319.48
  6. Step 6: Final answer
    x = 105,444.27

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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.