Home / 102,885.78-142,012.26-59,875.32

Finding the Fourth Proportional to 102,885.78, 142,012.26 and 59,875.32

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Solution

The fourth proportional to 102,885.78, 142,012.26 and 59,875.32 is: 82,645.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,885.78 : 142,012.26 = 59,875.32 : x
  2. Step 2: Convert to fraction form
    102,885.78/142,012.26 = 59,875.32/x
  3. Step 3: Cross multiply
    102,885.78x = 142,012.26 × 59,875.32
  4. Step 4: Simplify right side
    102,885.78x = 8,503,029,511.42
  5. Step 5: Solve for x
    x = 8,503,029,511.42/102,885.78
  6. Step 6: Final answer
    x = 82,645.33

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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.