Home / 100,284.70-138,304.55-62,038.17

Finding the Fourth Proportional to 100,284.70, 138,304.55 and 62,038.17

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Solution

The fourth proportional to 100,284.70, 138,304.55 and 62,038.17 is: 85,558.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,284.70 : 138,304.55 = 62,038.17 : x
  2. Step 2: Convert to fraction form
    100,284.70/138,304.55 = 62,038.17/x
  3. Step 3: Cross multiply
    100,284.70x = 138,304.55 × 62,038.17
  4. Step 4: Simplify right side
    100,284.70x = 8,580,161,339.77
  5. Step 5: Solve for x
    x = 8,580,161,339.77/100,284.70
  6. Step 6: Final answer
    x = 85,558.03

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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.