Home / 156,710.63-216,254.77-85,089.11

Finding the Fourth Proportional to 156,710.63, 216,254.77 and 85,089.11

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Solution

The fourth proportional to 156,710.63, 216,254.77 and 85,089.11 is: 117,419.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,710.63 : 216,254.77 = 85,089.11 : x
  2. Step 2: Convert to fraction form
    156,710.63/216,254.77 = 85,089.11/x
  3. Step 3: Cross multiply
    156,710.63x = 216,254.77 × 85,089.11
  4. Step 4: Simplify right side
    156,710.63x = 18,400,924,618.56
  5. Step 5: Solve for x
    x = 18,400,924,618.56/156,710.63
  6. Step 6: Final answer
    x = 117,419.76

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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.