Home / 103,342.32-154,826.28-86,808.60

Finding the Fourth Proportional to 103,342.32, 154,826.28 and 86,808.60

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Solution

The fourth proportional to 103,342.32, 154,826.28 and 86,808.60 is: 130,055.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,342.32 : 154,826.28 = 86,808.60 : x
  2. Step 2: Convert to fraction form
    103,342.32/154,826.28 = 86,808.60/x
  3. Step 3: Cross multiply
    103,342.32x = 154,826.28 × 86,808.60
  4. Step 4: Simplify right side
    103,342.32x = 13,440,252,610.01
  5. Step 5: Solve for x
    x = 13,440,252,610.01/103,342.32
  6. Step 6: Final answer
    x = 130,055.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.