Home / 71,684.83-106,990.16-70,502.34

Finding the Fourth Proportional to 71,684.83, 106,990.16 and 70,502.34

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Solution

The fourth proportional to 71,684.83, 106,990.16 and 70,502.34 is: 105,225.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,684.83 : 106,990.16 = 70,502.34 : x
  2. Step 2: Convert to fraction form
    71,684.83/106,990.16 = 70,502.34/x
  3. Step 3: Cross multiply
    71,684.83x = 106,990.16 × 70,502.34
  4. Step 4: Simplify right side
    71,684.83x = 7,543,056,636.97
  5. Step 5: Solve for x
    x = 7,543,056,636.97/71,684.83
  6. Step 6: Final answer
    x = 105,225.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.