Home / 113,125.38-156,166.09-65,369.40

Finding the Fourth Proportional to 113,125.38, 156,166.09 and 65,369.40

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Solution

The fourth proportional to 113,125.38, 156,166.09 and 65,369.40 is: 90,240.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,125.38 : 156,166.09 = 65,369.40 : x
  2. Step 2: Convert to fraction form
    113,125.38/156,166.09 = 65,369.40/x
  3. Step 3: Cross multiply
    113,125.38x = 156,166.09 × 65,369.40
  4. Step 4: Simplify right side
    113,125.38x = 10,208,483,440.22
  5. Step 5: Solve for x
    x = 10,208,483,440.22/113,125.38
  6. Step 6: Final answer
    x = 90,240.43

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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.