Home / 119,543.28-164,914.30-77,115.48

Finding the Fourth Proportional to 119,543.28, 164,914.30 and 77,115.48

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Solution

The fourth proportional to 119,543.28, 164,914.30 and 77,115.48 is: 106,383.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,543.28 : 164,914.30 = 77,115.48 : x
  2. Step 2: Convert to fraction form
    119,543.28/164,914.30 = 77,115.48/x
  3. Step 3: Cross multiply
    119,543.28x = 164,914.30 × 77,115.48
  4. Step 4: Simplify right side
    119,543.28x = 12,717,445,403.36
  5. Step 5: Solve for x
    x = 12,717,445,403.36/119,543.28
  6. Step 6: Final answer
    x = 106,383.61

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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.