Home / 122,302.17-168,705.32-76,908.15

Finding the Fourth Proportional to 122,302.17, 168,705.32 and 76,908.15

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Solution

The fourth proportional to 122,302.17, 168,705.32 and 76,908.15 is: 106,088.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,302.17 : 168,705.32 = 76,908.15 : x
  2. Step 2: Convert to fraction form
    122,302.17/168,705.32 = 76,908.15/x
  3. Step 3: Cross multiply
    122,302.17x = 168,705.32 × 76,908.15
  4. Step 4: Simplify right side
    122,302.17x = 12,974,813,671.82
  5. Step 5: Solve for x
    x = 12,974,813,671.82/122,302.17
  6. Step 6: Final answer
    x = 106,088.17

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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.