Home / 102,983.52-142,119.40-58,271.52

Finding the Fourth Proportional to 102,983.52, 142,119.40 and 58,271.52

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Solution

The fourth proportional to 102,983.52, 142,119.40 and 58,271.52 is: 80,415.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,983.52 : 142,119.40 = 58,271.52 : x
  2. Step 2: Convert to fraction form
    102,983.52/142,119.40 = 58,271.52/x
  3. Step 3: Cross multiply
    102,983.52x = 142,119.40 × 58,271.52
  4. Step 4: Simplify right side
    102,983.52x = 8,281,513,459.49
  5. Step 5: Solve for x
    x = 8,281,513,459.49/102,983.52
  6. Step 6: Final answer
    x = 80,415.91

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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.