Home / 112,928.80-169,328.40-34,031.20

Finding the Fourth Proportional to 112,928.80, 169,328.40 and 34,031.20

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Solution

The fourth proportional to 112,928.80, 169,328.40 and 34,031.20 is: 51,027.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,928.80 : 169,328.40 = 34,031.20 : x
  2. Step 2: Convert to fraction form
    112,928.80/169,328.40 = 34,031.20/x
  3. Step 3: Cross multiply
    112,928.80x = 169,328.40 × 34,031.20
  4. Step 4: Simplify right side
    112,928.80x = 5,762,448,646.08
  5. Step 5: Solve for x
    x = 5,762,448,646.08/112,928.80
  6. Step 6: Final answer
    x = 51,027.27

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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.