Home / 156,679.04-216,217.08-85,058.96

Finding the Fourth Proportional to 156,679.04, 216,217.08 and 85,058.96

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Solution

The fourth proportional to 156,679.04, 216,217.08 and 85,058.96 is: 117,381.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,679.04 : 216,217.08 = 85,058.96 : x
  2. Step 2: Convert to fraction form
    156,679.04/216,217.08 = 85,058.96/x
  3. Step 3: Cross multiply
    156,679.04x = 216,217.08 × 85,058.96
  4. Step 4: Simplify right side
    156,679.04x = 18,391,199,959.04
  5. Step 5: Solve for x
    x = 18,391,199,959.04/156,679.04
  6. Step 6: Final answer
    x = 117,381.37

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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.