Home / 119,227.80-164,421.58-78,319.70

Finding the Fourth Proportional to 119,227.80, 164,421.58 and 78,319.70

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Solution

The fourth proportional to 119,227.80, 164,421.58 and 78,319.70 is: 108,007.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,227.80 : 164,421.58 = 78,319.70 : x
  2. Step 2: Convert to fraction form
    119,227.80/164,421.58 = 78,319.70/x
  3. Step 3: Cross multiply
    119,227.80x = 164,421.58 × 78,319.70
  4. Step 4: Simplify right side
    119,227.80x = 12,877,448,819.13
  5. Step 5: Solve for x
    x = 12,877,448,819.13/119,227.80
  6. Step 6: Final answer
    x = 108,007.10

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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.