Home / 117,688.28-162,423.43-69,941.21

Finding the Fourth Proportional to 117,688.28, 162,423.43 and 69,941.21

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Solution

The fourth proportional to 117,688.28, 162,423.43 and 69,941.21 is: 96,526.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,688.28 : 162,423.43 = 69,941.21 : x
  2. Step 2: Convert to fraction form
    117,688.28/162,423.43 = 69,941.21/x
  3. Step 3: Cross multiply
    117,688.28x = 162,423.43 × 69,941.21
  4. Step 4: Simplify right side
    117,688.28x = 11,360,090,239.58
  5. Step 5: Solve for x
    x = 11,360,090,239.58/117,688.28
  6. Step 6: Final answer
    x = 96,526.95

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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.