Home / 105,165.12-145,140.58-59,854.12

Finding the Fourth Proportional to 105,165.12, 145,140.58 and 59,854.12

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Solution

The fourth proportional to 105,165.12, 145,140.58 and 59,854.12 is: 82,605.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,165.12 : 145,140.58 = 59,854.12 : x
  2. Step 2: Convert to fraction form
    105,165.12/145,140.58 = 59,854.12/x
  3. Step 3: Cross multiply
    105,165.12x = 145,140.58 × 59,854.12
  4. Step 4: Simplify right side
    105,165.12x = 8,687,261,692.19
  5. Step 5: Solve for x
    x = 8,687,261,692.19/105,165.12
  6. Step 6: Final answer
    x = 82,605.92

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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.