Home / 158,263.16-218,403.21-86,647.73

Finding the Fourth Proportional to 158,263.16, 218,403.21 and 86,647.73

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Solution

The fourth proportional to 158,263.16, 218,403.21 and 86,647.73 is: 119,573.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,263.16 : 218,403.21 = 86,647.73 : x
  2. Step 2: Convert to fraction form
    158,263.16/218,403.21 = 86,647.73/x
  3. Step 3: Cross multiply
    158,263.16x = 218,403.21 × 86,647.73
  4. Step 4: Simplify right side
    158,263.16x = 18,924,141,279.20
  5. Step 5: Solve for x
    x = 18,924,141,279.20/158,263.16
  6. Step 6: Final answer
    x = 119,573.89

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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.