Home / 99,054.20-148,581.30-72,810.20

Finding the Fourth Proportional to 99,054.20, 148,581.30 and 72,810.20

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Solution

The fourth proportional to 99,054.20, 148,581.30 and 72,810.20 is: 109,215.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,054.20 : 148,581.30 = 72,810.20 : x
  2. Step 2: Convert to fraction form
    99,054.20/148,581.30 = 72,810.20/x
  3. Step 3: Cross multiply
    99,054.20x = 148,581.30 × 72,810.20
  4. Step 4: Simplify right side
    99,054.20x = 10,818,234,169.26
  5. Step 5: Solve for x
    x = 10,818,234,169.26/99,054.20
  6. Step 6: Final answer
    x = 109,215.30

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1.5x scale

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.