Home / 105,092.20-145,030.72-57,348.16

Finding the Fourth Proportional to 105,092.20, 145,030.72 and 57,348.16

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Solution

The fourth proportional to 105,092.20, 145,030.72 and 57,348.16 is: 79,142.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,092.20 : 145,030.72 = 57,348.16 : x
  2. Step 2: Convert to fraction form
    105,092.20/145,030.72 = 57,348.16/x
  3. Step 3: Cross multiply
    105,092.20x = 145,030.72 × 57,348.16
  4. Step 4: Simplify right side
    105,092.20x = 8,317,244,935.48
  5. Step 5: Solve for x
    x = 8,317,244,935.48/105,092.20
  6. Step 6: Final answer
    x = 79,142.36

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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.