Home / 105,092.32-145,030.90-57,348.28

Finding the Fourth Proportional to 105,092.32, 145,030.90 and 57,348.28

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Solution

The fourth proportional to 105,092.32, 145,030.90 and 57,348.28 is: 79,142.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,092.32 : 145,030.90 = 57,348.28 : x
  2. Step 2: Convert to fraction form
    105,092.32/145,030.90 = 57,348.28/x
  3. Step 3: Cross multiply
    105,092.32x = 145,030.90 × 57,348.28
  4. Step 4: Simplify right side
    105,092.32x = 8,317,272,661.85
  5. Step 5: Solve for x
    x = 8,317,272,661.85/105,092.32
  6. Step 6: Final answer
    x = 79,142.54

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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.