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Finding the Fourth Proportional to 140,484.94, 210,727.62 and 57,378.94

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Solution

The fourth proportional to 140,484.94, 210,727.62 and 57,378.94 is: 86,068.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,484.94 : 210,727.62 = 57,378.94 : x
  2. Step 2: Convert to fraction form
    140,484.94/210,727.62 = 57,378.94/x
  3. Step 3: Cross multiply
    140,484.94x = 210,727.62 × 57,378.94
  4. Step 4: Simplify right side
    140,484.94x = 12,091,326,937.50
  5. Step 5: Solve for x
    x = 12,091,326,937.50/140,484.94
  6. Step 6: Final answer
    x = 86,068.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.