Home / 105,235.10-157,743.30-57,777.20

Finding the Fourth Proportional to 105,235.10, 157,743.30 and 57,777.20

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Solution

The fourth proportional to 105,235.10, 157,743.30 and 57,777.20 is: 86,605.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,235.10 : 157,743.30 = 57,777.20 : x
  2. Step 2: Convert to fraction form
    105,235.10/157,743.30 = 57,777.20/x
  3. Step 3: Cross multiply
    105,235.10x = 157,743.30 × 57,777.20
  4. Step 4: Simplify right side
    105,235.10x = 9,113,966,192.76
  5. Step 5: Solve for x
    x = 9,113,966,192.76/105,235.10
  6. Step 6: Final answer
    x = 86,605.76

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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.