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Finding the Fourth Proportional to 68,008.19, 102,012.14 and 18,088.29

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Solution

The fourth proportional to 68,008.19, 102,012.14 and 18,088.29 is: 27,132.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,008.19 : 102,012.14 = 18,088.29 : x
  2. Step 2: Convert to fraction form
    68,008.19/102,012.14 = 18,088.29/x
  3. Step 3: Cross multiply
    68,008.19x = 102,012.14 × 18,088.29
  4. Step 4: Simplify right side
    68,008.19x = 1,845,225,081.40
  5. Step 5: Solve for x
    x = 1,845,225,081.40/68,008.19
  6. Step 6: Final answer
    x = 27,132.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.