Home / 156,140.46-215,473.86-84,521.07

Finding the Fourth Proportional to 156,140.46, 215,473.86 and 84,521.07

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Solution

The fourth proportional to 156,140.46, 215,473.86 and 84,521.07 is: 116,639.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,140.46 : 215,473.86 = 84,521.07 : x
  2. Step 2: Convert to fraction form
    156,140.46/215,473.86 = 84,521.07/x
  3. Step 3: Cross multiply
    156,140.46x = 215,473.86 × 84,521.07
  4. Step 4: Simplify right side
    156,140.46x = 18,212,081,204.23
  5. Step 5: Solve for x
    x = 18,212,081,204.23/156,140.46
  6. Step 6: Final answer
    x = 116,639.09

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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.