Home / 105,790.17-145,952.11-69,511.13

Finding the Fourth Proportional to 105,790.17, 145,952.11 and 69,511.13

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Solution

The fourth proportional to 105,790.17, 145,952.11 and 69,511.13 is: 95,900.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,790.17 : 145,952.11 = 69,511.13 : x
  2. Step 2: Convert to fraction form
    105,790.17/145,952.11 = 69,511.13/x
  3. Step 3: Cross multiply
    105,790.17x = 145,952.11 × 69,511.13
  4. Step 4: Simplify right side
    105,790.17x = 10,145,296,091.98
  5. Step 5: Solve for x
    x = 10,145,296,091.98/105,790.17
  6. Step 6: Final answer
    x = 95,900.18

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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.