Home / 101,226.08-139,684.95-55,903.66

Finding the Fourth Proportional to 101,226.08, 139,684.95 and 55,903.66

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Solution

The fourth proportional to 101,226.08, 139,684.95 and 55,903.66 is: 77,143.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,226.08 : 139,684.95 = 55,903.66 : x
  2. Step 2: Convert to fraction form
    101,226.08/139,684.95 = 55,903.66/x
  3. Step 3: Cross multiply
    101,226.08x = 139,684.95 × 55,903.66
  4. Step 4: Simplify right side
    101,226.08x = 7,808,899,602.70
  5. Step 5: Solve for x
    x = 7,808,899,602.70/101,226.08
  6. Step 6: Final answer
    x = 77,143.16

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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.