Home / 156,017.32-215,303.59-84,397.32

Finding the Fourth Proportional to 156,017.32, 215,303.59 and 84,397.32

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Solution

The fourth proportional to 156,017.32, 215,303.59 and 84,397.32 is: 116,468.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,017.32 : 215,303.59 = 84,397.32 : x
  2. Step 2: Convert to fraction form
    156,017.32/215,303.59 = 84,397.32/x
  3. Step 3: Cross multiply
    156,017.32x = 215,303.59 × 84,397.32
  4. Step 4: Simplify right side
    156,017.32x = 18,171,045,982.38
  5. Step 5: Solve for x
    x = 18,171,045,982.38/156,017.32
  6. Step 6: Final answer
    x = 116,468.13

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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.