Home / 147,739.40-221,465.10-84,494.60

Finding the Fourth Proportional to 147,739.40, 221,465.10 and 84,494.60

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Solution

The fourth proportional to 147,739.40, 221,465.10 and 84,494.60 is: 126,659.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,739.40 : 221,465.10 = 84,494.60 : x
  2. Step 2: Convert to fraction form
    147,739.40/221,465.10 = 84,494.60/x
  3. Step 3: Cross multiply
    147,739.40x = 221,465.10 × 84,494.60
  4. Step 4: Simplify right side
    147,739.40x = 18,712,605,038.46
  5. Step 5: Solve for x
    x = 18,712,605,038.46/147,739.40
  6. Step 6: Final answer
    x = 126,659.54

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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.