Home / 97,788.18-134,949.60-63,818.40

Finding the Fourth Proportional to 97,788.18, 134,949.60 and 63,818.40

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Solution

The fourth proportional to 97,788.18, 134,949.60 and 63,818.40 is: 88,070.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,788.18 : 134,949.60 = 63,818.40 : x
  2. Step 2: Convert to fraction form
    97,788.18/134,949.60 = 63,818.40/x
  3. Step 3: Cross multiply
    97,788.18x = 134,949.60 × 63,818.40
  4. Step 4: Simplify right side
    97,788.18x = 8,612,267,552.64
  5. Step 5: Solve for x
    x = 8,612,267,552.64/97,788.18
  6. Step 6: Final answer
    x = 88,070.64

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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.