Home / 83,705.04-115,477.38-70,903.80

Finding the Fourth Proportional to 83,705.04, 115,477.38 and 70,903.80

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Solution

The fourth proportional to 83,705.04, 115,477.38 and 70,903.80 is: 97,817.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,705.04 : 115,477.38 = 70,903.80 : x
  2. Step 2: Convert to fraction form
    83,705.04/115,477.38 = 70,903.80/x
  3. Step 3: Cross multiply
    83,705.04x = 115,477.38 × 70,903.80
  4. Step 4: Simplify right side
    83,705.04x = 8,187,785,056.04
  5. Step 5: Solve for x
    x = 8,187,785,056.04/83,705.04
  6. Step 6: Final answer
    x = 97,817.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.