Home / 146,742.60-220,113.90-76,643.40

Finding the Fourth Proportional to 146,742.60, 220,113.90 and 76,643.40

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Solution

The fourth proportional to 146,742.60, 220,113.90 and 76,643.40 is: 114,965.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,742.60 : 220,113.90 = 76,643.40 : x
  2. Step 2: Convert to fraction form
    146,742.60/220,113.90 = 76,643.40/x
  3. Step 3: Cross multiply
    146,742.60x = 220,113.90 × 76,643.40
  4. Step 4: Simplify right side
    146,742.60x = 16,870,277,683.26
  5. Step 5: Solve for x
    x = 16,870,277,683.26/146,742.60
  6. Step 6: Final answer
    x = 114,965.10

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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.