Home / 124,518.18-171,834.30-70,803.20

Finding the Fourth Proportional to 124,518.18, 171,834.30 and 70,803.20

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Solution

The fourth proportional to 124,518.18, 171,834.30 and 70,803.20 is: 97,707.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,518.18 : 171,834.30 = 70,803.20 : x
  2. Step 2: Convert to fraction form
    124,518.18/171,834.30 = 70,803.20/x
  3. Step 3: Cross multiply
    124,518.18x = 171,834.30 × 70,803.20
  4. Step 4: Simplify right side
    124,518.18x = 12,166,418,309.76
  5. Step 5: Solve for x
    x = 12,166,418,309.76/124,518.18
  6. Step 6: Final answer
    x = 97,707.97

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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.