Home / 105,267.93-145,267.99-57,520.18

Finding the Fourth Proportional to 105,267.93, 145,267.99 and 57,520.18

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Solution

The fourth proportional to 105,267.93, 145,267.99 and 57,520.18 is: 79,376.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,267.93 : 145,267.99 = 57,520.18 : x
  2. Step 2: Convert to fraction form
    105,267.93/145,267.99 = 57,520.18/x
  3. Step 3: Cross multiply
    105,267.93x = 145,267.99 × 57,520.18
  4. Step 4: Simplify right side
    105,267.93x = 8,355,840,933.04
  5. Step 5: Solve for x
    x = 8,355,840,933.04/105,267.93
  6. Step 6: Final answer
    x = 79,376.89

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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.