Home / 112,802.40-169,203.60-99,680.40

Finding the Fourth Proportional to 112,802.40, 169,203.60 and 99,680.40

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Solution

The fourth proportional to 112,802.40, 169,203.60 and 99,680.40 is: 149,520.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,802.40 : 169,203.60 = 99,680.40 : x
  2. Step 2: Convert to fraction form
    112,802.40/169,203.60 = 99,680.40/x
  3. Step 3: Cross multiply
    112,802.40x = 169,203.60 × 99,680.40
  4. Step 4: Simplify right side
    112,802.40x = 16,866,282,529.44
  5. Step 5: Solve for x
    x = 16,866,282,529.44/112,802.40
  6. Step 6: Final answer
    x = 149,520.60

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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.