Home / 124,624.40-186,815.10-71,261.60

Finding the Fourth Proportional to 124,624.40, 186,815.10 and 71,261.60

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Solution

The fourth proportional to 124,624.40, 186,815.10 and 71,261.60 is: 106,822.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,624.40 : 186,815.10 = 71,261.60 : x
  2. Step 2: Convert to fraction form
    124,624.40/186,815.10 = 71,261.60/x
  3. Step 3: Cross multiply
    124,624.40x = 186,815.10 × 71,261.60
  4. Step 4: Simplify right side
    124,624.40x = 13,312,742,930.16
  5. Step 5: Solve for x
    x = 13,312,742,930.16/124,624.40
  6. Step 6: Final answer
    x = 106,822.92

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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.