Home / 158,899.35-219,282.69-86,303.66

Finding the Fourth Proportional to 158,899.35, 219,282.69 and 86,303.66

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Solution

The fourth proportional to 158,899.35, 219,282.69 and 86,303.66 is: 119,099.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,899.35 : 219,282.69 = 86,303.66 : x
  2. Step 2: Convert to fraction form
    158,899.35/219,282.69 = 86,303.66/x
  3. Step 3: Cross multiply
    158,899.35x = 219,282.69 × 86,303.66
  4. Step 4: Simplify right side
    158,899.35x = 18,924,897,625.23
  5. Step 5: Solve for x
    x = 18,924,897,625.23/158,899.35
  6. Step 6: Final answer
    x = 119,099.91

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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.