Home / 156,746.06-216,306-85,124.54

Finding the Fourth Proportional to 156,746.06, 216,306 and 85,124.54

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Solution

The fourth proportional to 156,746.06, 216,306 and 85,124.54 is: 117,469.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,746.06 : 216,306 = 85,124.54 : x
  2. Step 2: Convert to fraction form
    156,746.06/216,306 = 85,124.54/x
  3. Step 3: Cross multiply
    156,746.06x = 216,306 × 85,124.54
  4. Step 4: Simplify right side
    156,746.06x = 18,412,948,749.24
  5. Step 5: Solve for x
    x = 18,412,948,749.24/156,746.06
  6. Step 6: Final answer
    x = 117,469.93

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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.