Home / 115,423.50-159,292.45-64,446.25

Finding the Fourth Proportional to 115,423.50, 159,292.45 and 64,446.25

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Solution

The fourth proportional to 115,423.50, 159,292.45 and 64,446.25 is: 88,940.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,423.50 : 159,292.45 = 64,446.25 : x
  2. Step 2: Convert to fraction form
    115,423.50/159,292.45 = 64,446.25/x
  3. Step 3: Cross multiply
    115,423.50x = 159,292.45 × 64,446.25
  4. Step 4: Simplify right side
    115,423.50x = 10,265,801,055.81
  5. Step 5: Solve for x
    x = 10,265,801,055.81/115,423.50
  6. Step 6: Final answer
    x = 88,940.30

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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.