Home / 156,802.18-216,391.53-85,186.66

Finding the Fourth Proportional to 156,802.18, 216,391.53 and 85,186.66

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Solution

The fourth proportional to 156,802.18, 216,391.53 and 85,186.66 is: 117,560.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,802.18 : 216,391.53 = 85,186.66 : x
  2. Step 2: Convert to fraction form
    156,802.18/216,391.53 = 85,186.66/x
  3. Step 3: Cross multiply
    156,802.18x = 216,391.53 × 85,186.66
  4. Step 4: Simplify right side
    156,802.18x = 18,433,671,692.99
  5. Step 5: Solve for x
    x = 18,433,671,692.99/156,802.18
  6. Step 6: Final answer
    x = 117,560.05

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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.