Home / 156,953.40-235,430.10-103,809.30

Finding the Fourth Proportional to 156,953.40, 235,430.10 and 103,809.30

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Solution

The fourth proportional to 156,953.40, 235,430.10 and 103,809.30 is: 155,713.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,953.40 : 235,430.10 = 103,809.30 : x
  2. Step 2: Convert to fraction form
    156,953.40/235,430.10 = 103,809.30/x
  3. Step 3: Cross multiply
    156,953.40x = 235,430.10 × 103,809.30
  4. Step 4: Simplify right side
    156,953.40x = 24,439,833,879.93
  5. Step 5: Solve for x
    x = 24,439,833,879.93/156,953.40
  6. Step 6: Final answer
    x = 155,713.95

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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.