Home / 159,678.15-239,518.20-47,359.29

Finding the Fourth Proportional to 159,678.15, 239,518.20 and 47,359.29

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Solution

The fourth proportional to 159,678.15, 239,518.20 and 47,359.29 is: 71,039.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,678.15 : 239,518.20 = 47,359.29 : x
  2. Step 2: Convert to fraction form
    159,678.15/239,518.20 = 47,359.29/x
  3. Step 3: Cross multiply
    159,678.15x = 239,518.20 × 47,359.29
  4. Step 4: Simplify right side
    159,678.15x = 11,343,411,894.08
  5. Step 5: Solve for x
    x = 11,343,411,894.08/159,678.15
  6. Step 6: Final answer
    x = 71,039.22

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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.