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Finding the Fourth Proportional to 107,237.80, 160,856.70 and 89,871.40

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Solution

The fourth proportional to 107,237.80, 160,856.70 and 89,871.40 is: 134,807.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,237.80 : 160,856.70 = 89,871.40 : x
  2. Step 2: Convert to fraction form
    107,237.80/160,856.70 = 89,871.40/x
  3. Step 3: Cross multiply
    107,237.80x = 160,856.70 × 89,871.40
  4. Step 4: Simplify right side
    107,237.80x = 14,456,416,828.38
  5. Step 5: Solve for x
    x = 14,456,416,828.38/107,237.80
  6. Step 6: Final answer
    x = 134,807.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.