Home / 100,841.04-139,155.22-55,510.20

Finding the Fourth Proportional to 100,841.04, 139,155.22 and 55,510.20

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Solution

The fourth proportional to 100,841.04, 139,155.22 and 55,510.20 is: 76,601.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,841.04 : 139,155.22 = 55,510.20 : x
  2. Step 2: Convert to fraction form
    100,841.04/139,155.22 = 55,510.20/x
  3. Step 3: Cross multiply
    100,841.04x = 139,155.22 × 55,510.20
  4. Step 4: Simplify right side
    100,841.04x = 7,724,534,093.24
  5. Step 5: Solve for x
    x = 7,724,534,093.24/100,841.04
  6. Step 6: Final answer
    x = 76,601.10

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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.