Home / 147,283.34-203,253.74-81,878.32

Finding the Fourth Proportional to 147,283.34, 203,253.74 and 81,878.32

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Solution

The fourth proportional to 147,283.34, 203,253.74 and 81,878.32 is: 112,993.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,283.34 : 203,253.74 = 81,878.32 : x
  2. Step 2: Convert to fraction form
    147,283.34/203,253.74 = 81,878.32/x
  3. Step 3: Cross multiply
    147,283.34x = 203,253.74 × 81,878.32
  4. Step 4: Simplify right side
    147,283.34x = 16,642,074,690.41
  5. Step 5: Solve for x
    x = 16,642,074,690.41/147,283.34
  6. Step 6: Final answer
    x = 112,993.60

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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.