Home / 156,992.18-216,642.60-89,013.74

Finding the Fourth Proportional to 156,992.18, 216,642.60 and 89,013.74

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Solution

The fourth proportional to 156,992.18, 216,642.60 and 89,013.74 is: 122,835.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,992.18 : 216,642.60 = 89,013.74 : x
  2. Step 2: Convert to fraction form
    156,992.18/216,642.60 = 89,013.74/x
  3. Step 3: Cross multiply
    156,992.18x = 216,642.60 × 89,013.74
  4. Step 4: Simplify right side
    156,992.18x = 19,284,166,986.11
  5. Step 5: Solve for x
    x = 19,284,166,986.11/156,992.18
  6. Step 6: Final answer
    x = 122,835.21

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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.