Home / 113,120.38-156,088.74-65,364.46

Finding the Fourth Proportional to 113,120.38, 156,088.74 and 65,364.46

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Solution

The fourth proportional to 113,120.38, 156,088.74 and 65,364.46 is: 90,192.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,120.38 : 156,088.74 = 65,364.46 : x
  2. Step 2: Convert to fraction form
    113,120.38/156,088.74 = 65,364.46/x
  3. Step 3: Cross multiply
    113,120.38x = 156,088.74 × 65,364.46
  4. Step 4: Simplify right side
    113,120.38x = 10,202,656,202.18
  5. Step 5: Solve for x
    x = 10,202,656,202.18/113,120.38
  6. Step 6: Final answer
    x = 90,192.91

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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.