Home / 117,630.28-162,349.14-85,904.20

Finding the Fourth Proportional to 117,630.28, 162,349.14 and 85,904.20

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Solution

The fourth proportional to 117,630.28, 162,349.14 and 85,904.20 is: 118,561.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,630.28 : 162,349.14 = 85,904.20 : x
  2. Step 2: Convert to fraction form
    117,630.28/162,349.14 = 85,904.20/x
  3. Step 3: Cross multiply
    117,630.28x = 162,349.14 × 85,904.20
  4. Step 4: Simplify right side
    117,630.28x = 13,946,472,992.39
  5. Step 5: Solve for x
    x = 13,946,472,992.39/117,630.28
  6. Step 6: Final answer
    x = 118,561.93

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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.