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Finding the Fourth Proportional to 102,915.35, 142,006.06 and 60,482.08

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Solution

The fourth proportional to 102,915.35, 142,006.06 and 60,482.08 is: 83,455.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,915.35 : 142,006.06 = 60,482.08 : x
  2. Step 2: Convert to fraction form
    102,915.35/142,006.06 = 60,482.08/x
  3. Step 3: Cross multiply
    102,915.35x = 142,006.06 × 60,482.08
  4. Step 4: Simplify right side
    102,915.35x = 8,588,821,881.40
  5. Step 5: Solve for x
    x = 8,588,821,881.40/102,915.35
  6. Step 6: Final answer
    x = 83,455.21

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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.