Home / 156,156.65-215,497.89-84,538.20

Finding the Fourth Proportional to 156,156.65, 215,497.89 and 84,538.20

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Solution

The fourth proportional to 156,156.65, 215,497.89 and 84,538.20 is: 116,663.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,156.65 : 215,497.89 = 84,538.20 : x
  2. Step 2: Convert to fraction form
    156,156.65/215,497.89 = 84,538.20/x
  3. Step 3: Cross multiply
    156,156.65x = 215,497.89 × 84,538.20
  4. Step 4: Simplify right side
    156,156.65x = 18,217,803,724.40
  5. Step 5: Solve for x
    x = 18,217,803,724.40/156,156.65
  6. Step 6: Final answer
    x = 116,663.65

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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.