Home / 185,705.04-256,288.82-105,146.76

Finding the Fourth Proportional to 185,705.04, 256,288.82 and 105,146.76

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Solution

The fourth proportional to 185,705.04, 256,288.82 and 105,146.76 is: 145,111.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,705.04 : 256,288.82 = 105,146.76 : x
  2. Step 2: Convert to fraction form
    185,705.04/256,288.82 = 105,146.76/x
  3. Step 3: Cross multiply
    185,705.04x = 256,288.82 × 105,146.76
  4. Step 4: Simplify right side
    185,705.04x = 26,947,938,521.49
  5. Step 5: Solve for x
    x = 26,947,938,521.49/185,705.04
  6. Step 6: Final answer
    x = 145,111.51

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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.