Home / 105,383.04-145,426.56-57,636.24

Finding the Fourth Proportional to 105,383.04, 145,426.56 and 57,636.24

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Solution

The fourth proportional to 105,383.04, 145,426.56 and 57,636.24 is: 79,536.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,383.04 : 145,426.56 = 57,636.24 : x
  2. Step 2: Convert to fraction form
    105,383.04/145,426.56 = 57,636.24/x
  3. Step 3: Cross multiply
    105,383.04x = 145,426.56 × 57,636.24
  4. Step 4: Simplify right side
    105,383.04x = 8,381,840,114.53
  5. Step 5: Solve for x
    x = 8,381,840,114.53/105,383.04
  6. Step 6: Final answer
    x = 79,536.90

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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.