Home / 158,125.77-218,216.21-86,506.29

Finding the Fourth Proportional to 158,125.77, 218,216.21 and 86,506.29

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Solution

The fourth proportional to 158,125.77, 218,216.21 and 86,506.29 is: 119,380.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,125.77 : 218,216.21 = 86,506.29 : x
  2. Step 2: Convert to fraction form
    158,125.77/218,216.21 = 86,506.29/x
  3. Step 3: Cross multiply
    158,125.77x = 218,216.21 × 86,506.29
  4. Step 4: Simplify right side
    158,125.77x = 18,877,074,312.43
  5. Step 5: Solve for x
    x = 18,877,074,312.43/158,125.77
  6. Step 6: Final answer
    x = 119,380.13

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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.