Home / 158,526.09-218,763.90-86,906.12

Finding the Fourth Proportional to 158,526.09, 218,763.90 and 86,906.12

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Solution

The fourth proportional to 158,526.09, 218,763.90 and 86,906.12 is: 119,929.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,526.09 : 218,763.90 = 86,906.12 : x
  2. Step 2: Convert to fraction form
    158,526.09/218,763.90 = 86,906.12/x
  3. Step 3: Cross multiply
    158,526.09x = 218,763.90 × 86,906.12
  4. Step 4: Simplify right side
    158,526.09x = 19,011,920,651.25
  5. Step 5: Solve for x
    x = 19,011,920,651.25/158,526.09
  6. Step 6: Final answer
    x = 119,929.29

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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.