Home / 156,729.24-235,133.64-72,550.13

Finding the Fourth Proportional to 156,729.24, 235,133.64 and 72,550.13

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Solution

The fourth proportional to 156,729.24, 235,133.64 and 72,550.13 is: 108,843.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,729.24 : 235,133.64 = 72,550.13 : x
  2. Step 2: Convert to fraction form
    156,729.24/235,133.64 = 72,550.13/x
  3. Step 3: Cross multiply
    156,729.24x = 235,133.64 × 72,550.13
  4. Step 4: Simplify right side
    156,729.24x = 17,058,974,973.71
  5. Step 5: Solve for x
    x = 17,058,974,973.71/156,729.24
  6. Step 6: Final answer
    x = 108,843.60

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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.