Home / 107,875.19-148,872.81-60,128.87

Finding the Fourth Proportional to 107,875.19, 148,872.81 and 60,128.87

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Solution

The fourth proportional to 107,875.19, 148,872.81 and 60,128.87 is: 82,980.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,875.19 : 148,872.81 = 60,128.87 : x
  2. Step 2: Convert to fraction form
    107,875.19/148,872.81 = 60,128.87/x
  3. Step 3: Cross multiply
    107,875.19x = 148,872.81 × 60,128.87
  4. Step 4: Simplify right side
    107,875.19x = 8,951,554,211.21
  5. Step 5: Solve for x
    x = 8,951,554,211.21/107,875.19
  6. Step 6: Final answer
    x = 82,980.66

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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.