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Finding the Fourth Proportional to 105,253.77, 145,248.50 and 57,506.09

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Solution

The fourth proportional to 105,253.77, 145,248.50 and 57,506.09 is: 79,357.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,253.77 : 145,248.50 = 57,506.09 : x
  2. Step 2: Convert to fraction form
    105,253.77/145,248.50 = 57,506.09/x
  3. Step 3: Cross multiply
    105,253.77x = 145,248.50 × 57,506.09
  4. Step 4: Simplify right side
    105,253.77x = 8,352,673,275.57
  5. Step 5: Solve for x
    x = 8,352,673,275.57/105,253.77
  6. Step 6: Final answer
    x = 79,357.48

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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.