Home / 122,909.27-169,509.02-84,730.91

Finding the Fourth Proportional to 122,909.27, 169,509.02 and 84,730.91

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Solution

The fourth proportional to 122,909.27, 169,509.02 and 84,730.91 is: 116,855.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,909.27 : 169,509.02 = 84,730.91 : x
  2. Step 2: Convert to fraction form
    122,909.27/169,509.02 = 84,730.91/x
  3. Step 3: Cross multiply
    122,909.27x = 169,509.02 × 84,730.91
  4. Step 4: Simplify right side
    122,909.27x = 14,362,652,246.61
  5. Step 5: Solve for x
    x = 14,362,652,246.61/122,909.27
  6. Step 6: Final answer
    x = 116,855.73

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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.