Home / 109,130.12-163,391.03-55,707.17

Finding the Fourth Proportional to 109,130.12, 163,391.03 and 55,707.17

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Solution

The fourth proportional to 109,130.12, 163,391.03 and 55,707.17 is: 83,405.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,130.12 : 163,391.03 = 55,707.17 : x
  2. Step 2: Convert to fraction form
    109,130.12/163,391.03 = 55,707.17/x
  3. Step 3: Cross multiply
    109,130.12x = 163,391.03 × 55,707.17
  4. Step 4: Simplify right side
    109,130.12x = 9,102,052,223.53
  5. Step 5: Solve for x
    x = 9,102,052,223.53/109,130.12
  6. Step 6: Final answer
    x = 83,405.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.