Home / 106,385.40-159,635.70-47,230.20

Finding the Fourth Proportional to 106,385.40, 159,635.70 and 47,230.20

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Solution

The fourth proportional to 106,385.40, 159,635.70 and 47,230.20 is: 70,870.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,385.40 : 159,635.70 = 47,230.20 : x
  2. Step 2: Convert to fraction form
    106,385.40/159,635.70 = 47,230.20/x
  3. Step 3: Cross multiply
    106,385.40x = 159,635.70 × 47,230.20
  4. Step 4: Simplify right side
    106,385.40x = 7,539,626,038.14
  5. Step 5: Solve for x
    x = 7,539,626,038.14/106,385.40
  6. Step 6: Final answer
    x = 70,870.87

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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.