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Finding the Fourth Proportional to 117,681.18, 162,400.32 and 63,966.12

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Solution

The fourth proportional to 117,681.18, 162,400.32 and 63,966.12 is: 88,273.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,681.18 : 162,400.32 = 63,966.12 : x
  2. Step 2: Convert to fraction form
    117,681.18/162,400.32 = 63,966.12/x
  3. Step 3: Cross multiply
    117,681.18x = 162,400.32 × 63,966.12
  4. Step 4: Simplify right side
    117,681.18x = 10,388,118,357.16
  5. Step 5: Solve for x
    x = 10,388,118,357.16/117,681.18
  6. Step 6: Final answer
    x = 88,273.40

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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.