Home / 156,280.16-215,622.86-98,143.16

Finding the Fourth Proportional to 156,280.16, 215,622.86 and 98,143.16

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Solution

The fourth proportional to 156,280.16, 215,622.86 and 98,143.16 is: 135,410.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,280.16 : 215,622.86 = 98,143.16 : x
  2. Step 2: Convert to fraction form
    156,280.16/215,622.86 = 98,143.16/x
  3. Step 3: Cross multiply
    156,280.16x = 215,622.86 × 98,143.16
  4. Step 4: Simplify right side
    156,280.16x = 21,161,908,848.64
  5. Step 5: Solve for x
    x = 21,161,908,848.64/156,280.16
  6. Step 6: Final answer
    x = 135,410.08

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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.