Home / 145,838.64-218,768.68-52,345.20

Finding the Fourth Proportional to 145,838.64, 218,768.68 and 52,345.20

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Solution

The fourth proportional to 145,838.64, 218,768.68 and 52,345.20 is: 78,521.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,838.64 : 218,768.68 = 52,345.20 : x
  2. Step 2: Convert to fraction form
    145,838.64/218,768.68 = 52,345.20/x
  3. Step 3: Cross multiply
    145,838.64x = 218,768.68 × 52,345.20
  4. Step 4: Simplify right side
    145,838.64x = 11,451,490,308.34
  5. Step 5: Solve for x
    x = 11,451,490,308.34/145,838.64
  6. Step 6: Final answer
    x = 78,521.65

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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.