Home / 158,276.33-218,421.33-86,656.34

Finding the Fourth Proportional to 158,276.33, 218,421.33 and 86,656.34

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Solution

The fourth proportional to 158,276.33, 218,421.33 and 86,656.34 is: 119,585.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,276.33 : 218,421.33 = 86,656.34 : x
  2. Step 2: Convert to fraction form
    158,276.33/218,421.33 = 86,656.34/x
  3. Step 3: Cross multiply
    158,276.33x = 218,421.33 × 86,656.34
  4. Step 4: Simplify right side
    158,276.33x = 18,927,592,028.20
  5. Step 5: Solve for x
    x = 18,927,592,028.20/158,276.33
  6. Step 6: Final answer
    x = 119,585.74

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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.