Home / 90,718.94-125,007.50-70,176.20

Finding the Fourth Proportional to 90,718.94, 125,007.50 and 70,176.20

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Solution

The fourth proportional to 90,718.94, 125,007.50 and 70,176.20 is: 96,700.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,718.94 : 125,007.50 = 70,176.20 : x
  2. Step 2: Convert to fraction form
    90,718.94/125,007.50 = 70,176.20/x
  3. Step 3: Cross multiply
    90,718.94x = 125,007.50 × 70,176.20
  4. Step 4: Simplify right side
    90,718.94x = 8,772,551,321.50
  5. Step 5: Solve for x
    x = 8,772,551,321.50/90,718.94
  6. Step 6: Final answer
    x = 96,700.33

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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.