Home / 109,890.36-151,638.48-62,143.56

Finding the Fourth Proportional to 109,890.36, 151,638.48 and 62,143.56

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Solution

The fourth proportional to 109,890.36, 151,638.48 and 62,143.56 is: 85,752.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,890.36 : 151,638.48 = 62,143.56 : x
  2. Step 2: Convert to fraction form
    109,890.36/151,638.48 = 62,143.56/x
  3. Step 3: Cross multiply
    109,890.36x = 151,638.48 × 62,143.56
  4. Step 4: Simplify right side
    109,890.36x = 9,423,354,980.19
  5. Step 5: Solve for x
    x = 9,423,354,980.19/109,890.36
  6. Step 6: Final answer
    x = 85,752.34

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1.5x scale

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.