Home / 105,433.76-145,426.92-62,976.80

Finding the Fourth Proportional to 105,433.76, 145,426.92 and 62,976.80

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Solution

The fourth proportional to 105,433.76, 145,426.92 and 62,976.80 is: 86,865.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,433.76 : 145,426.92 = 62,976.80 : x
  2. Step 2: Convert to fraction form
    105,433.76/145,426.92 = 62,976.80/x
  3. Step 3: Cross multiply
    105,433.76x = 145,426.92 × 62,976.80
  4. Step 4: Simplify right side
    105,433.76x = 9,158,522,055.46
  5. Step 5: Solve for x
    x = 9,158,522,055.46/105,433.76
  6. Step 6: Final answer
    x = 86,865.18

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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.