Home / 98,722.72-136,241.04-56,280.16

Finding the Fourth Proportional to 98,722.72, 136,241.04 and 56,280.16

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Solution

The fourth proportional to 98,722.72, 136,241.04 and 56,280.16 is: 77,668.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,722.72 : 136,241.04 = 56,280.16 : x
  2. Step 2: Convert to fraction form
    98,722.72/136,241.04 = 56,280.16/x
  3. Step 3: Cross multiply
    98,722.72x = 136,241.04 × 56,280.16
  4. Step 4: Simplify right side
    98,722.72x = 7,667,667,529.77
  5. Step 5: Solve for x
    x = 7,667,667,529.77/98,722.72
  6. Step 6: Final answer
    x = 77,668.72

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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.