Home / 146,301.60-219,189.93-138,428.40

Finding the Fourth Proportional to 146,301.60, 219,189.93 and 138,428.40

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Solution

The fourth proportional to 146,301.60, 219,189.93 and 138,428.40 is: 207,394.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,301.60 : 219,189.93 = 138,428.40 : x
  2. Step 2: Convert to fraction form
    146,301.60/219,189.93 = 138,428.40/x
  3. Step 3: Cross multiply
    146,301.60x = 219,189.93 × 138,428.40
  4. Step 4: Simplify right side
    146,301.60x = 30,342,111,306.01
  5. Step 5: Solve for x
    x = 30,342,111,306.01/146,301.60
  6. Step 6: Final answer
    x = 207,394.25

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1.5x scale

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.