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Finding the Fourth Proportional to 117,695.40, 162,403.62 and 69,931.32

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Solution

The fourth proportional to 117,695.40, 162,403.62 and 69,931.32 is: 96,495.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,695.40 : 162,403.62 = 69,931.32 : x
  2. Step 2: Convert to fraction form
    117,695.40/162,403.62 = 69,931.32/x
  3. Step 3: Cross multiply
    117,695.40x = 162,403.62 × 69,931.32
  4. Step 4: Simplify right side
    117,695.40x = 11,357,099,519.38
  5. Step 5: Solve for x
    x = 11,357,099,519.38/117,695.40
  6. Step 6: Final answer
    x = 96,495.70

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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.