Home / 154,521.03-213,246.90-86,534.02

Finding the Fourth Proportional to 154,521.03, 213,246.90 and 86,534.02

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Solution

The fourth proportional to 154,521.03, 213,246.90 and 86,534.02 is: 119,421.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,521.03 : 213,246.90 = 86,534.02 : x
  2. Step 2: Convert to fraction form
    154,521.03/213,246.90 = 86,534.02/x
  3. Step 3: Cross multiply
    154,521.03x = 213,246.90 × 86,534.02
  4. Step 4: Simplify right side
    154,521.03x = 18,453,111,509.54
  5. Step 5: Solve for x
    x = 18,453,111,509.54/154,521.03
  6. Step 6: Final answer
    x = 119,421.36

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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.