Home / 158,233.85-218,362.94-86,618.40

Finding the Fourth Proportional to 158,233.85, 218,362.94 and 86,618.40

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Solution

The fourth proportional to 158,233.85, 218,362.94 and 86,618.40 is: 119,533.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,233.85 : 218,362.94 = 86,618.40 : x
  2. Step 2: Convert to fraction form
    158,233.85/218,362.94 = 86,618.40/x
  3. Step 3: Cross multiply
    158,233.85x = 218,362.94 × 86,618.40
  4. Step 4: Simplify right side
    158,233.85x = 18,914,248,482.10
  5. Step 5: Solve for x
    x = 18,914,248,482.10/158,233.85
  6. Step 6: Final answer
    x = 119,533.52

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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.