Home / 156,065.18-215,368.41-84,443.63

Finding the Fourth Proportional to 156,065.18, 215,368.41 and 84,443.63

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Solution

The fourth proportional to 156,065.18, 215,368.41 and 84,443.63 is: 116,531.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,065.18 : 215,368.41 = 84,443.63 : x
  2. Step 2: Convert to fraction form
    156,065.18/215,368.41 = 84,443.63/x
  3. Step 3: Cross multiply
    156,065.18x = 215,368.41 × 84,443.63
  4. Step 4: Simplify right side
    156,065.18x = 18,186,490,327.73
  5. Step 5: Solve for x
    x = 18,186,490,327.73/156,065.18
  6. Step 6: Final answer
    x = 116,531.38

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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.