Home / 156,941.61-216,583.70-85,326.57

Finding the Fourth Proportional to 156,941.61, 216,583.70 and 85,326.57

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Solution

The fourth proportional to 156,941.61, 216,583.70 and 85,326.57 is: 117,752.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,941.61 : 216,583.70 = 85,326.57 : x
  2. Step 2: Convert to fraction form
    156,941.61/216,583.70 = 85,326.57/x
  3. Step 3: Cross multiply
    156,941.61x = 216,583.70 × 85,326.57
  4. Step 4: Simplify right side
    156,941.61x = 18,480,343,812.28
  5. Step 5: Solve for x
    x = 18,480,343,812.28/156,941.61
  6. Step 6: Final answer
    x = 117,752.99

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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.