Home / 105,448.16-145,518.28-57,701.50

Finding the Fourth Proportional to 105,448.16, 145,518.28 and 57,701.50

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Solution

The fourth proportional to 105,448.16, 145,518.28 and 57,701.50 is: 79,627.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,448.16 : 145,518.28 = 57,701.50 : x
  2. Step 2: Convert to fraction form
    105,448.16/145,518.28 = 57,701.50/x
  3. Step 3: Cross multiply
    105,448.16x = 145,518.28 × 57,701.50
  4. Step 4: Simplify right side
    105,448.16x = 8,396,623,033.42
  5. Step 5: Solve for x
    x = 8,396,623,033.42/105,448.16
  6. Step 6: Final answer
    x = 79,627.97

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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.