Home / 122,721.16-169,412.26-92,518.76

Finding the Fourth Proportional to 122,721.16, 169,412.26 and 92,518.76

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Solution

The fourth proportional to 122,721.16, 169,412.26 and 92,518.76 is: 127,718.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,721.16 : 169,412.26 = 92,518.76 : x
  2. Step 2: Convert to fraction form
    122,721.16/169,412.26 = 92,518.76/x
  3. Step 3: Cross multiply
    122,721.16x = 169,412.26 × 92,518.76
  4. Step 4: Simplify right side
    122,721.16x = 15,673,812,224.00
  5. Step 5: Solve for x
    x = 15,673,812,224.00/122,721.16
  6. Step 6: Final answer
    x = 127,718.91

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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.