Home / 117,624.12-162,210.60-90,724.02

Finding the Fourth Proportional to 117,624.12, 162,210.60 and 90,724.02

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Solution

The fourth proportional to 117,624.12, 162,210.60 and 90,724.02 is: 125,113.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,624.12 : 162,210.60 = 90,724.02 : x
  2. Step 2: Convert to fraction form
    117,624.12/162,210.60 = 90,724.02/x
  3. Step 3: Cross multiply
    117,624.12x = 162,210.60 × 90,724.02
  4. Step 4: Simplify right side
    117,624.12x = 14,716,397,718.61
  5. Step 5: Solve for x
    x = 14,716,397,718.61/117,624.12
  6. Step 6: Final answer
    x = 125,113.78

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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.