Home / 100,830.92-139,146.58-62,576.20

Finding the Fourth Proportional to 100,830.92, 139,146.58 and 62,576.20

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Solution

The fourth proportional to 100,830.92, 139,146.58 and 62,576.20 is: 86,355.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,830.92 : 139,146.58 = 62,576.20 : x
  2. Step 2: Convert to fraction form
    100,830.92/139,146.58 = 62,576.20/x
  3. Step 3: Cross multiply
    100,830.92x = 139,146.58 × 62,576.20
  4. Step 4: Simplify right side
    100,830.92x = 8,707,264,219.40
  5. Step 5: Solve for x
    x = 8,707,264,219.40/100,830.92
  6. Step 6: Final answer
    x = 86,355.10

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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.