Home / 97,142.32-145,700.72-30,582.80

Finding the Fourth Proportional to 97,142.32, 145,700.72 and 30,582.80

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Solution

The fourth proportional to 97,142.32, 145,700.72 and 30,582.80 is: 45,870.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,142.32 : 145,700.72 = 30,582.80 : x
  2. Step 2: Convert to fraction form
    97,142.32/145,700.72 = 30,582.80/x
  3. Step 3: Cross multiply
    97,142.32x = 145,700.72 × 30,582.80
  4. Step 4: Simplify right side
    97,142.32x = 4,455,935,979.62
  5. Step 5: Solve for x
    x = 4,455,935,979.62/97,142.32
  6. Step 6: Final answer
    x = 45,870.18

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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.