Home / 99,973.20-149,903.10-40,739.52

Finding the Fourth Proportional to 99,973.20, 149,903.10 and 40,739.52

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Solution

The fourth proportional to 99,973.20, 149,903.10 and 40,739.52 is: 61,086.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,973.20 : 149,903.10 = 40,739.52 : x
  2. Step 2: Convert to fraction form
    99,973.20/149,903.10 = 40,739.52/x
  3. Step 3: Cross multiply
    99,973.20x = 149,903.10 × 40,739.52
  4. Step 4: Simplify right side
    99,973.20x = 6,106,980,340.51
  5. Step 5: Solve for x
    x = 6,106,980,340.51/99,973.20
  6. Step 6: Final answer
    x = 61,086.17

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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.