Home / 156,888.72-216,500.40-85,267.14

Finding the Fourth Proportional to 156,888.72, 216,500.40 and 85,267.14

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Solution

The fourth proportional to 156,888.72, 216,500.40 and 85,267.14 is: 117,665.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,888.72 : 216,500.40 = 85,267.14 : x
  2. Step 2: Convert to fraction form
    156,888.72/216,500.40 = 85,267.14/x
  3. Step 3: Cross multiply
    156,888.72x = 216,500.40 × 85,267.14
  4. Step 4: Simplify right side
    156,888.72x = 18,460,369,916.86
  5. Step 5: Solve for x
    x = 18,460,369,916.86/156,888.72
  6. Step 6: Final answer
    x = 117,665.37

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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.