Home / 158,587.27-218,855.51-86,967.12

Finding the Fourth Proportional to 158,587.27, 218,855.51 and 86,967.12

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Solution

The fourth proportional to 158,587.27, 218,855.51 and 86,967.12 is: 120,017.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,587.27 : 218,855.51 = 86,967.12 : x
  2. Step 2: Convert to fraction form
    158,587.27/218,855.51 = 86,967.12/x
  3. Step 3: Cross multiply
    158,587.27x = 218,855.51 × 86,967.12
  4. Step 4: Simplify right side
    158,587.27x = 19,033,233,400.83
  5. Step 5: Solve for x
    x = 19,033,233,400.83/158,587.27
  6. Step 6: Final answer
    x = 120,017.41

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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.