Home / 103,428.87-142,746.23-58,110.36

Finding the Fourth Proportional to 103,428.87, 142,746.23 and 58,110.36

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Solution

The fourth proportional to 103,428.87, 142,746.23 and 58,110.36 is: 80,200.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,428.87 : 142,746.23 = 58,110.36 : x
  2. Step 2: Convert to fraction form
    103,428.87/142,746.23 = 58,110.36/x
  3. Step 3: Cross multiply
    103,428.87x = 142,746.23 × 58,110.36
  4. Step 4: Simplify right side
    103,428.87x = 8,295,035,226.87
  5. Step 5: Solve for x
    x = 8,295,035,226.87/103,428.87
  6. Step 6: Final answer
    x = 80,200.39

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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.