Home / 112,808.40-169,212.60-102,440.40

Finding the Fourth Proportional to 112,808.40, 169,212.60 and 102,440.40

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Solution

The fourth proportional to 112,808.40, 169,212.60 and 102,440.40 is: 153,660.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,808.40 : 169,212.60 = 102,440.40 : x
  2. Step 2: Convert to fraction form
    112,808.40/169,212.60 = 102,440.40/x
  3. Step 3: Cross multiply
    112,808.40x = 169,212.60 × 102,440.40
  4. Step 4: Simplify right side
    112,808.40x = 17,334,206,429.04
  5. Step 5: Solve for x
    x = 17,334,206,429.04/112,808.40
  6. Step 6: Final answer
    x = 153,660.60

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1.5x scale

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.