Home / 105,269.40-145,265.58-57,513.24

Finding the Fourth Proportional to 105,269.40, 145,265.58 and 57,513.24

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Solution

The fourth proportional to 105,269.40, 145,265.58 and 57,513.24 is: 79,364.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,269.40 : 145,265.58 = 57,513.24 : x
  2. Step 2: Convert to fraction form
    105,269.40/145,265.58 = 57,513.24/x
  3. Step 3: Cross multiply
    105,269.40x = 145,265.58 × 57,513.24
  4. Step 4: Simplify right side
    105,269.40x = 8,354,694,166.28
  5. Step 5: Solve for x
    x = 8,354,694,166.28/105,269.40
  6. Step 6: Final answer
    x = 79,364.89

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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.