Home / 158,554.77-218,819.37-86,948.74

Finding the Fourth Proportional to 158,554.77, 218,819.37 and 86,948.74

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Solution

The fourth proportional to 158,554.77, 218,819.37 and 86,948.74 is: 119,996.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,554.77 : 218,819.37 = 86,948.74 : x
  2. Step 2: Convert to fraction form
    158,554.77/218,819.37 = 86,948.74/x
  3. Step 3: Cross multiply
    158,554.77x = 218,819.37 × 86,948.74
  4. Step 4: Simplify right side
    158,554.77x = 19,026,069,108.68
  5. Step 5: Solve for x
    x = 19,026,069,108.68/158,554.77
  6. Step 6: Final answer
    x = 119,996.83

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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.