Home / 156,782.79-216,364.28-85,166.91

Finding the Fourth Proportional to 156,782.79, 216,364.28 and 85,166.91

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Solution

The fourth proportional to 156,782.79, 216,364.28 and 85,166.91 is: 117,532.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,782.79 : 216,364.28 = 85,166.91 : x
  2. Step 2: Convert to fraction form
    156,782.79/216,364.28 = 85,166.91/x
  3. Step 3: Cross multiply
    156,782.79x = 216,364.28 × 85,166.91
  4. Step 4: Simplify right side
    156,782.79x = 18,427,076,736.14
  5. Step 5: Solve for x
    x = 18,427,076,736.14/156,782.79
  6. Step 6: Final answer
    x = 117,532.52

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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.