Home / 156,740.30-235,111.50-38,411.65

Finding the Fourth Proportional to 156,740.30, 235,111.50 and 38,411.65

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Solution

The fourth proportional to 156,740.30, 235,111.50 and 38,411.65 is: 57,617.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,740.30 : 235,111.50 = 38,411.65 : x
  2. Step 2: Convert to fraction form
    156,740.30/235,111.50 = 38,411.65/x
  3. Step 3: Cross multiply
    156,740.30x = 235,111.50 × 38,411.65
  4. Step 4: Simplify right side
    156,740.30x = 9,031,020,648.98
  5. Step 5: Solve for x
    x = 9,031,020,648.98/156,740.30
  6. Step 6: Final answer
    x = 57,617.73

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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.