Home / 117,318.08-175,332.70-85,794.32

Finding the Fourth Proportional to 117,318.08, 175,332.70 and 85,794.32

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Solution

The fourth proportional to 117,318.08, 175,332.70 and 85,794.32 is: 128,220.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,318.08 : 175,332.70 = 85,794.32 : x
  2. Step 2: Convert to fraction form
    117,318.08/175,332.70 = 85,794.32/x
  3. Step 3: Cross multiply
    117,318.08x = 175,332.70 × 85,794.32
  4. Step 4: Simplify right side
    117,318.08x = 15,042,549,770.26
  5. Step 5: Solve for x
    x = 15,042,549,770.26/117,318.08
  6. Step 6: Final answer
    x = 128,220.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.