Home / 113,328.40-170,018.20-66,557.20

Finding the Fourth Proportional to 113,328.40, 170,018.20 and 66,557.20

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Solution

The fourth proportional to 113,328.40, 170,018.20 and 66,557.20 is: 99,850.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,328.40 : 170,018.20 = 66,557.20 : x
  2. Step 2: Convert to fraction form
    113,328.40/170,018.20 = 66,557.20/x
  3. Step 3: Cross multiply
    113,328.40x = 170,018.20 × 66,557.20
  4. Step 4: Simplify right side
    113,328.40x = 11,315,935,341.04
  5. Step 5: Solve for x
    x = 11,315,935,341.04/113,328.40
  6. Step 6: Final answer
    x = 99,850.83

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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.