Home / 103,417.77-142,713.30-58,100.70

Finding the Fourth Proportional to 103,417.77, 142,713.30 and 58,100.70

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Solution

The fourth proportional to 103,417.77, 142,713.30 and 58,100.70 is: 80,177.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,417.77 : 142,713.30 = 58,100.70 : x
  2. Step 2: Convert to fraction form
    103,417.77/142,713.30 = 58,100.70/x
  3. Step 3: Cross multiply
    103,417.77x = 142,713.30 × 58,100.70
  4. Step 4: Simplify right side
    103,417.77x = 8,291,742,629.31
  5. Step 5: Solve for x
    x = 8,291,742,629.31/103,417.77
  6. Step 6: Final answer
    x = 80,177.16

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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.