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Finding the Fourth Proportional to 102,348.63, 153,689.67 and 63,154.89

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Solution

The fourth proportional to 102,348.63, 153,689.67 and 63,154.89 is: 94,835.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,348.63 : 153,689.67 = 63,154.89 : x
  2. Step 2: Convert to fraction form
    102,348.63/153,689.67 = 63,154.89/x
  3. Step 3: Cross multiply
    102,348.63x = 153,689.67 × 63,154.89
  4. Step 4: Simplify right side
    102,348.63x = 9,706,254,202.99
  5. Step 5: Solve for x
    x = 9,706,254,202.99/102,348.63
  6. Step 6: Final answer
    x = 94,835.21

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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.