Home / 105,387.46-145,368.20-73,544.74

Finding the Fourth Proportional to 105,387.46, 145,368.20 and 73,544.74

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Solution

The fourth proportional to 105,387.46, 145,368.20 and 73,544.74 is: 101,445.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,387.46 : 145,368.20 = 73,544.74 : x
  2. Step 2: Convert to fraction form
    105,387.46/145,368.20 = 73,544.74/x
  3. Step 3: Cross multiply
    105,387.46x = 145,368.20 × 73,544.74
  4. Step 4: Simplify right side
    105,387.46x = 10,691,066,473.27
  5. Step 5: Solve for x
    x = 10,691,066,473.27/105,387.46
  6. Step 6: Final answer
    x = 101,445.34

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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.