Home / 105,430.24-145,497.23-57,683.61

Finding the Fourth Proportional to 105,430.24, 145,497.23 and 57,683.61

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Solution

The fourth proportional to 105,430.24, 145,497.23 and 57,683.61 is: 79,605.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,430.24 : 145,497.23 = 57,683.61 : x
  2. Step 2: Convert to fraction form
    105,430.24/145,497.23 = 57,683.61/x
  3. Step 3: Cross multiply
    105,430.24x = 145,497.23 × 57,683.61
  4. Step 4: Simplify right side
    105,430.24x = 8,392,805,182.98
  5. Step 5: Solve for x
    x = 8,392,805,182.98/105,430.24
  6. Step 6: Final answer
    x = 79,605.29

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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.