Home / 105,358.26-145,392.39-57,611.46

Finding the Fourth Proportional to 105,358.26, 145,392.39 and 57,611.46

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Solution

The fourth proportional to 105,358.26, 145,392.39 and 57,611.46 is: 79,502.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,358.26 : 145,392.39 = 57,611.46 : x
  2. Step 2: Convert to fraction form
    105,358.26/145,392.39 = 57,611.46/x
  3. Step 3: Cross multiply
    105,358.26x = 145,392.39 × 57,611.46
  4. Step 4: Simplify right side
    105,358.26x = 8,376,267,860.79
  5. Step 5: Solve for x
    x = 8,376,267,860.79/105,358.26
  6. Step 6: Final answer
    x = 79,502.72

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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.