Home / 158,386.80-218,574.04-86,765.24

Finding the Fourth Proportional to 158,386.80, 218,574.04 and 86,765.24

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Solution

The fourth proportional to 158,386.80, 218,574.04 and 86,765.24 is: 119,736.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,386.80 : 218,574.04 = 86,765.24 : x
  2. Step 2: Convert to fraction form
    158,386.80/218,574.04 = 86,765.24/x
  3. Step 3: Cross multiply
    158,386.80x = 218,574.04 × 86,765.24
  4. Step 4: Simplify right side
    158,386.80x = 18,964,629,038.37
  5. Step 5: Solve for x
    x = 18,964,629,038.37/158,386.80
  6. Step 6: Final answer
    x = 119,736.17

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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.