Home / 147,513.60-221,342.40-68,587.20

Finding the Fourth Proportional to 147,513.60, 221,342.40 and 68,587.20

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Solution

The fourth proportional to 147,513.60, 221,342.40 and 68,587.20 is: 102,914.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,513.60 : 221,342.40 = 68,587.20 : x
  2. Step 2: Convert to fraction form
    147,513.60/221,342.40 = 68,587.20/x
  3. Step 3: Cross multiply
    147,513.60x = 221,342.40 × 68,587.20
  4. Step 4: Simplify right side
    147,513.60x = 15,181,255,457.28
  5. Step 5: Solve for x
    x = 15,181,255,457.28/147,513.60
  6. Step 6: Final answer
    x = 102,914.28

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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.