Home / 156,650.10-216,178.23-85,030.11

Finding the Fourth Proportional to 156,650.10, 216,178.23 and 85,030.11

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Solution

The fourth proportional to 156,650.10, 216,178.23 and 85,030.11 is: 117,342.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,650.10 : 216,178.23 = 85,030.11 : x
  2. Step 2: Convert to fraction form
    156,650.10/216,178.23 = 85,030.11/x
  3. Step 3: Cross multiply
    156,650.10x = 216,178.23 × 85,030.11
  4. Step 4: Simplify right side
    156,650.10x = 18,381,658,676.51
  5. Step 5: Solve for x
    x = 18,381,658,676.51/156,650.10
  6. Step 6: Final answer
    x = 117,342.14

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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.