Home / 103,363.40-142,639.64-58,041.72

Finding the Fourth Proportional to 103,363.40, 142,639.64 and 58,041.72

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Solution

The fourth proportional to 103,363.40, 142,639.64 and 58,041.72 is: 80,096.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,363.40 : 142,639.64 = 58,041.72 : x
  2. Step 2: Convert to fraction form
    103,363.40/142,639.64 = 58,041.72/x
  3. Step 3: Cross multiply
    103,363.40x = 142,639.64 × 58,041.72
  4. Step 4: Simplify right side
    103,363.40x = 8,279,050,045.78
  5. Step 5: Solve for x
    x = 8,279,050,045.78/103,363.40
  6. Step 6: Final answer
    x = 80,096.53

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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.