Home / 122,783.13-169,439.18-69,068.52

Finding the Fourth Proportional to 122,783.13, 169,439.18 and 69,068.52

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Solution

The fourth proportional to 122,783.13, 169,439.18 and 69,068.52 is: 95,313.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,783.13 : 169,439.18 = 69,068.52 : x
  2. Step 2: Convert to fraction form
    122,783.13/169,439.18 = 69,068.52/x
  3. Step 3: Cross multiply
    122,783.13x = 169,439.18 × 69,068.52
  4. Step 4: Simplify right side
    122,783.13x = 11,702,913,047.27
  5. Step 5: Solve for x
    x = 11,702,913,047.27/122,783.13
  6. Step 6: Final answer
    x = 95,313.69

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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.