Home / 156,699.02-216,242.42-85,081.79

Finding the Fourth Proportional to 156,699.02, 216,242.42 and 85,081.79

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Solution

The fourth proportional to 156,699.02, 216,242.42 and 85,081.79 is: 117,411.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,699.02 : 216,242.42 = 85,081.79 : x
  2. Step 2: Convert to fraction form
    156,699.02/216,242.42 = 85,081.79/x
  3. Step 3: Cross multiply
    156,699.02x = 216,242.42 × 85,081.79
  4. Step 4: Simplify right side
    156,699.02x = 18,398,292,282.73
  5. Step 5: Solve for x
    x = 18,398,292,282.73/156,699.02
  6. Step 6: Final answer
    x = 117,411.66

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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.