Home / 100,914.14-139,264.98-55,595.18

Finding the Fourth Proportional to 100,914.14, 139,264.98 and 55,595.18

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Solution

The fourth proportional to 100,914.14, 139,264.98 and 55,595.18 is: 76,723.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,914.14 : 139,264.98 = 55,595.18 : x
  2. Step 2: Convert to fraction form
    100,914.14/139,264.98 = 55,595.18/x
  3. Step 3: Cross multiply
    100,914.14x = 139,264.98 × 55,595.18
  4. Step 4: Simplify right side
    100,914.14x = 7,742,461,630.80
  5. Step 5: Solve for x
    x = 7,742,461,630.80/100,914.14
  6. Step 6: Final answer
    x = 76,723.26

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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.