Home / 100,333.89-138,447.09-60,038.28

Finding the Fourth Proportional to 100,333.89, 138,447.09 and 60,038.28

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Solution

The fourth proportional to 100,333.89, 138,447.09 and 60,038.28 is: 82,844.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,333.89 : 138,447.09 = 60,038.28 : x
  2. Step 2: Convert to fraction form
    100,333.89/138,447.09 = 60,038.28/x
  3. Step 3: Cross multiply
    100,333.89x = 138,447.09 × 60,038.28
  4. Step 4: Simplify right side
    100,333.89x = 8,312,125,154.61
  5. Step 5: Solve for x
    x = 8,312,125,154.61/100,333.89
  6. Step 6: Final answer
    x = 82,844.64

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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.