Home / 156,277.16-215,618.72-98,140.16

Finding the Fourth Proportional to 156,277.16, 215,618.72 and 98,140.16

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Solution

The fourth proportional to 156,277.16, 215,618.72 and 98,140.16 is: 135,405.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,277.16 : 215,618.72 = 98,140.16 : x
  2. Step 2: Convert to fraction form
    156,277.16/215,618.72 = 98,140.16/x
  3. Step 3: Cross multiply
    156,277.16x = 215,618.72 × 98,140.16
  4. Step 4: Simplify right side
    156,277.16x = 21,160,855,679.80
  5. Step 5: Solve for x
    x = 21,160,855,679.80/156,277.16
  6. Step 6: Final answer
    x = 135,405.94

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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.