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Finding the Fourth Proportional to 98,155.82, 135,462.04 and 55,717.08

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Solution

The fourth proportional to 98,155.82, 135,462.04 and 55,717.08 is: 76,893.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,155.82 : 135,462.04 = 55,717.08 : x
  2. Step 2: Convert to fraction form
    98,155.82/135,462.04 = 55,717.08/x
  3. Step 3: Cross multiply
    98,155.82x = 135,462.04 × 55,717.08
  4. Step 4: Simplify right side
    98,155.82x = 7,547,549,319.64
  5. Step 5: Solve for x
    x = 7,547,549,319.64/98,155.82
  6. Step 6: Final answer
    x = 76,893.55

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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.