Home / 98,127.90-135,417.15-55,687.14

Finding the Fourth Proportional to 98,127.90, 135,417.15 and 55,687.14

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Solution

The fourth proportional to 98,127.90, 135,417.15 and 55,687.14 is: 76,848.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,127.90 : 135,417.15 = 55,687.14 : x
  2. Step 2: Convert to fraction form
    98,127.90/135,417.15 = 55,687.14/x
  3. Step 3: Cross multiply
    98,127.90x = 135,417.15 × 55,687.14
  4. Step 4: Simplify right side
    98,127.90x = 7,540,993,790.45
  5. Step 5: Solve for x
    x = 7,540,993,790.45/98,127.90
  6. Step 6: Final answer
    x = 76,848.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.