Home / 122,579.12-169,206.92-77,248.23

Finding the Fourth Proportional to 122,579.12, 169,206.92 and 77,248.23

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Solution

The fourth proportional to 122,579.12, 169,206.92 and 77,248.23 is: 106,632.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,579.12 : 169,206.92 = 77,248.23 : x
  2. Step 2: Convert to fraction form
    122,579.12/169,206.92 = 77,248.23/x
  3. Step 3: Cross multiply
    122,579.12x = 169,206.92 × 77,248.23
  4. Step 4: Simplify right side
    122,579.12x = 13,070,935,728.98
  5. Step 5: Solve for x
    x = 13,070,935,728.98/122,579.12
  6. Step 6: Final answer
    x = 106,632.64

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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.