Home / 147,287.53-203,258.16-83,626.70

Finding the Fourth Proportional to 147,287.53, 203,258.16 and 83,626.70

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Solution

The fourth proportional to 147,287.53, 203,258.16 and 83,626.70 is: 115,405.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,287.53 : 203,258.16 = 83,626.70 : x
  2. Step 2: Convert to fraction form
    147,287.53/203,258.16 = 83,626.70/x
  3. Step 3: Cross multiply
    147,287.53x = 203,258.16 × 83,626.70
  4. Step 4: Simplify right side
    147,287.53x = 16,997,808,152.58
  5. Step 5: Solve for x
    x = 16,997,808,152.58/147,287.53
  6. Step 6: Final answer
    x = 115,405.62

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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.