Home / 97,969.20-147,030.60-45,385.20

Finding the Fourth Proportional to 97,969.20, 147,030.60 and 45,385.20

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Solution

The fourth proportional to 97,969.20, 147,030.60 and 45,385.20 is: 68,113.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,969.20 : 147,030.60 = 45,385.20 : x
  2. Step 2: Convert to fraction form
    97,969.20/147,030.60 = 45,385.20/x
  3. Step 3: Cross multiply
    97,969.20x = 147,030.60 × 45,385.20
  4. Step 4: Simplify right side
    97,969.20x = 6,673,013,187.12
  5. Step 5: Solve for x
    x = 6,673,013,187.12/97,969.20
  6. Step 6: Final answer
    x = 68,113.38

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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.