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Finding the Fourth Proportional to 102,483.40, 141,492.88 and 64,295.28

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Solution

The fourth proportional to 102,483.40, 141,492.88 and 64,295.28 is: 88,768.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,483.40 : 141,492.88 = 64,295.28 : x
  2. Step 2: Convert to fraction form
    102,483.40/141,492.88 = 64,295.28/x
  3. Step 3: Cross multiply
    102,483.40x = 141,492.88 × 64,295.28
  4. Step 4: Simplify right side
    102,483.40x = 9,097,324,337.61
  5. Step 5: Solve for x
    x = 9,097,324,337.61/102,483.40
  6. Step 6: Final answer
    x = 88,768.76

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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.