Home / 105,236.10-145,224.18-57,488.52

Finding the Fourth Proportional to 105,236.10, 145,224.18 and 57,488.52

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Solution

The fourth proportional to 105,236.10, 145,224.18 and 57,488.52 is: 79,333.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,236.10 : 145,224.18 = 57,488.52 : x
  2. Step 2: Convert to fraction form
    105,236.10/145,224.18 = 57,488.52/x
  3. Step 3: Cross multiply
    105,236.10x = 145,224.18 × 57,488.52
  4. Step 4: Simplify right side
    105,236.10x = 8,348,723,176.41
  5. Step 5: Solve for x
    x = 8,348,723,176.41/105,236.10
  6. Step 6: Final answer
    x = 79,333.26

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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.