Home / 147,903.40-221,855.10-122,971.60

Finding the Fourth Proportional to 147,903.40, 221,855.10 and 122,971.60

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Solution

The fourth proportional to 147,903.40, 221,855.10 and 122,971.60 is: 184,457.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,903.40 : 221,855.10 = 122,971.60 : x
  2. Step 2: Convert to fraction form
    147,903.40/221,855.10 = 122,971.60/x
  3. Step 3: Cross multiply
    147,903.40x = 221,855.10 × 122,971.60
  4. Step 4: Simplify right side
    147,903.40x = 27,281,876,615.16
  5. Step 5: Solve for x
    x = 27,281,876,615.16/147,903.40
  6. Step 6: Final answer
    x = 184,457.40

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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.