Home / 122,384.10-168,891.45-71,395.14

Finding the Fourth Proportional to 122,384.10, 168,891.45 and 71,395.14

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Solution

The fourth proportional to 122,384.10, 168,891.45 and 71,395.14 is: 98,526.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,384.10 : 168,891.45 = 71,395.14 : x
  2. Step 2: Convert to fraction form
    122,384.10/168,891.45 = 71,395.14/x
  3. Step 3: Cross multiply
    122,384.10x = 168,891.45 × 71,395.14
  4. Step 4: Simplify right side
    122,384.10x = 12,058,028,717.55
  5. Step 5: Solve for x
    x = 12,058,028,717.55/122,384.10
  6. Step 6: Final answer
    x = 98,526.11

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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.