Home / 158,150.05-218,246.93-86,530.36

Finding the Fourth Proportional to 158,150.05, 218,246.93 and 86,530.36

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Solution

The fourth proportional to 158,150.05, 218,246.93 and 86,530.36 is: 119,411.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,150.05 : 218,246.93 = 86,530.36 : x
  2. Step 2: Convert to fraction form
    158,150.05/218,246.93 = 86,530.36/x
  3. Step 3: Cross multiply
    158,150.05x = 218,246.93 × 86,530.36
  4. Step 4: Simplify right side
    158,150.05x = 18,884,984,989.14
  5. Step 5: Solve for x
    x = 18,884,984,989.14/158,150.05
  6. Step 6: Final answer
    x = 119,411.82

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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.