Home / 103,346.92-142,689.30-69,406.12

Finding the Fourth Proportional to 103,346.92, 142,689.30 and 69,406.12

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Solution

The fourth proportional to 103,346.92, 142,689.30 and 69,406.12 is: 95,827.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,346.92 : 142,689.30 = 69,406.12 : x
  2. Step 2: Convert to fraction form
    103,346.92/142,689.30 = 69,406.12/x
  3. Step 3: Cross multiply
    103,346.92x = 142,689.30 × 69,406.12
  4. Step 4: Simplify right side
    103,346.92x = 9,903,510,678.52
  5. Step 5: Solve for x
    x = 9,903,510,678.52/103,346.92
  6. Step 6: Final answer
    x = 95,827.83

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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.