Home / 100,957.44-139,316.28-58,529.76

Finding the Fourth Proportional to 100,957.44, 139,316.28 and 58,529.76

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Solution

The fourth proportional to 100,957.44, 139,316.28 and 58,529.76 is: 80,768.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,957.44 : 139,316.28 = 58,529.76 : x
  2. Step 2: Convert to fraction form
    100,957.44/139,316.28 = 58,529.76/x
  3. Step 3: Cross multiply
    100,957.44x = 139,316.28 × 58,529.76
  4. Step 4: Simplify right side
    100,957.44x = 8,154,148,432.49
  5. Step 5: Solve for x
    x = 8,154,148,432.49/100,957.44
  6. Step 6: Final answer
    x = 80,768.18

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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.