Home / 142,297.23-196,377.74-81,877.05

Finding the Fourth Proportional to 142,297.23, 196,377.74 and 81,877.05

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Solution

The fourth proportional to 142,297.23, 196,377.74 and 81,877.05 is: 112,994.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,297.23 : 196,377.74 = 81,877.05 : x
  2. Step 2: Convert to fraction form
    142,297.23/196,377.74 = 81,877.05/x
  3. Step 3: Cross multiply
    142,297.23x = 196,377.74 × 81,877.05
  4. Step 4: Simplify right side
    142,297.23x = 16,078,829,627.48
  5. Step 5: Solve for x
    x = 16,078,829,627.48/142,297.23
  6. Step 6: Final answer
    x = 112,994.68

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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.