Home / 145,236.76-200,445.52-81,574.56

Finding the Fourth Proportional to 145,236.76, 200,445.52 and 81,574.56

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Solution

The fourth proportional to 145,236.76, 200,445.52 and 81,574.56 is: 112,583.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,236.76 : 200,445.52 = 81,574.56 : x
  2. Step 2: Convert to fraction form
    145,236.76/200,445.52 = 81,574.56/x
  3. Step 3: Cross multiply
    145,236.76x = 200,445.52 × 81,574.56
  4. Step 4: Simplify right side
    145,236.76x = 16,351,255,097.97
  5. Step 5: Solve for x
    x = 16,351,255,097.97/145,236.76
  6. Step 6: Final answer
    x = 112,583.45

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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.