Home / 156,386.84-215,814.98-84,767.38

Finding the Fourth Proportional to 156,386.84, 215,814.98 and 84,767.38

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Solution

The fourth proportional to 156,386.84, 215,814.98 and 84,767.38 is: 116,979.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,386.84 : 215,814.98 = 84,767.38 : x
  2. Step 2: Convert to fraction form
    156,386.84/215,814.98 = 84,767.38/x
  3. Step 3: Cross multiply
    156,386.84x = 215,814.98 × 84,767.38
  4. Step 4: Simplify right side
    156,386.84x = 18,294,070,091.73
  5. Step 5: Solve for x
    x = 18,294,070,091.73/156,386.84
  6. Step 6: Final answer
    x = 116,979.60

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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.