Home / 99,320.20-148,980.30-94,712.20

Finding the Fourth Proportional to 99,320.20, 148,980.30 and 94,712.20

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Solution

The fourth proportional to 99,320.20, 148,980.30 and 94,712.20 is: 142,068.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,320.20 : 148,980.30 = 94,712.20 : x
  2. Step 2: Convert to fraction form
    99,320.20/148,980.30 = 94,712.20/x
  3. Step 3: Cross multiply
    99,320.20x = 148,980.30 × 94,712.20
  4. Step 4: Simplify right side
    99,320.20x = 14,110,251,969.66
  5. Step 5: Solve for x
    x = 14,110,251,969.66/99,320.20
  6. Step 6: Final answer
    x = 142,068.30

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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.