Home / 105,336.39-145,364.16-57,589.71

Finding the Fourth Proportional to 105,336.39, 145,364.16 and 57,589.71

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Solution

The fourth proportional to 105,336.39, 145,364.16 and 57,589.71 is: 79,473.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,336.39 : 145,364.16 = 57,589.71 : x
  2. Step 2: Convert to fraction form
    105,336.39/145,364.16 = 57,589.71/x
  3. Step 3: Cross multiply
    105,336.39x = 145,364.16 × 57,589.71
  4. Step 4: Simplify right side
    105,336.39x = 8,371,479,818.79
  5. Step 5: Solve for x
    x = 8,371,479,818.79/105,336.39
  6. Step 6: Final answer
    x = 79,473.77

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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.