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Finding the Fourth Proportional to 156,574.90, 216,073.06 and 84,954.90

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Solution

The fourth proportional to 156,574.90, 216,073.06 and 84,954.90 is: 117,237.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,574.90 : 216,073.06 = 84,954.90 : x
  2. Step 2: Convert to fraction form
    156,574.90/216,073.06 = 84,954.90/x
  3. Step 3: Cross multiply
    156,574.90x = 216,073.06 × 84,954.90
  4. Step 4: Simplify right side
    156,574.90x = 18,356,465,204.99
  5. Step 5: Solve for x
    x = 18,356,465,204.99/156,574.90
  6. Step 6: Final answer
    x = 117,237.60

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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.