Home / 105,239.84-145,233.12-57,496.28

Finding the Fourth Proportional to 105,239.84, 145,233.12 and 57,496.28

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Solution

The fourth proportional to 105,239.84, 145,233.12 and 57,496.28 is: 79,346.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,239.84 : 145,233.12 = 57,496.28 : x
  2. Step 2: Convert to fraction form
    105,239.84/145,233.12 = 57,496.28/x
  3. Step 3: Cross multiply
    105,239.84x = 145,233.12 × 57,496.28
  4. Step 4: Simplify right side
    105,239.84x = 8,350,364,132.79
  5. Step 5: Solve for x
    x = 8,350,364,132.79/105,239.84
  6. Step 6: Final answer
    x = 79,346.04

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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.