Home / 117,117.62-161,622.28-63,402.60

Finding the Fourth Proportional to 117,117.62, 161,622.28 and 63,402.60

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Solution

The fourth proportional to 117,117.62, 161,622.28 and 63,402.60 is: 87,495.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,117.62 : 161,622.28 = 63,402.60 : x
  2. Step 2: Convert to fraction form
    117,117.62/161,622.28 = 63,402.60/x
  3. Step 3: Cross multiply
    117,117.62x = 161,622.28 × 63,402.60
  4. Step 4: Simplify right side
    117,117.62x = 10,247,272,769.93
  5. Step 5: Solve for x
    x = 10,247,272,769.93/117,117.62
  6. Step 6: Final answer
    x = 87,495.57

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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.